Questions tagged [sensor]

An electronic device that monitors a particular parameter and provides data to be consumed by other systems to adjust and/or monitor vehicle systems. Examples include: mass air flow (MAF) sensors, oil pressure switches and transducers, ABS wheel speed sensors, outside air temperature (OAT) sensors.

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Data for car parts and sensors [duplicate]

If a fault code appears in the OBD scanner, how tough is it to map the fault to the part of the car that is causing the problem? Is there any website (or api or mobile app) that has this mapping so ...
Soumya Sen's user avatar
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5 votes
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357 views

Chevy Malibu 2009 coolant sensor

I have a problem with my malibu, I got a code on the obdii reader as though the coolant temperature reading is not correct, so in the car lcd on the instrument cluster I can see Coolant temperature : -...
Omar Khoali's user avatar
4 votes
1 answer
3k views

Replaced my upstream O2 sensor, still get P1133 code

I had the following error codes P1133 - HO2S Insufficient Switching Bank 1 Sensor 1 P0133 - O2 Sensor Circuit Slow Response Bank 1 Sensor 1 P0130 - O2 Sensor Circuit Bank 1 Sensor 1 P0442 - EVAP ...
the_prole's user avatar
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3 votes
1 answer
136 views

Unresolvable system leak error codes

I have had my mechanic replace multiple components in my EVAP system trying to resolve the following error codes which occur in no particular order within 24 hours after resetting my memory and cold ...
the_prole's user avatar
  • 393
3 votes
2 answers
1k views

Unknown sensor chevy spark 800cc

I just got my wife's car back from the mechanic who fixed it. He told me that there is a sensor which has no piping connected to it, and he have no idea where it should be connected. The issue is, I ...
Pieter Goosen's user avatar
5 votes
1 answer
149 views

New to mechanical work. Is this a safe way to clean oxygen sensor, or any similar part

https://www.youtube.com/watch?v=tD9KXAukO9M So I found this video of a guy cleaning their oxygen sensor out with an ultrasound cleaner. I presume what it is doing is breaking up the carbon build up ...
user1428649's user avatar
4 votes
3 answers
10k views

What are the safety sensors & cameras on those new windshield packs? (like Volvo city safety)

Many new models come with sensor & cameras on the windshield, like this Volvo: Although cars came from different manufactorers it seems that they all have pretty much the same pack - these 4 ...
michael's user avatar
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4 votes
2 answers
3k views

Corolla 1999 - My parking brake light randomly turns on and off

While I'm driving in my Toyota Corolla 1999 (3-door model): My parking brake light randomly turns on and off while the car is moving. It doesn't go on and off rapidly, but usually switches at a random ...
Alexander Johansen's user avatar
2 votes
1 answer
271 views

How to remove sensor for rear tailgate

Would like to remove the dashboard light for the tailgate-open sensor in my van (Kia Pregio) because it stays on even with the key removed from the vehicle. There's no fuse for it, so I put a piece ...
Drawninpictures's user avatar
4 votes
1 answer
123 views

Are torque sensors used to reduce cam belt failure damage?

The water pump bearings on a friend's car recently seized, causing the timing belt to jump off the pulley, lose tension, lose timing, and the engine to munch its valves. Could this failure have been ...
Daniel's user avatar
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2 votes
1 answer
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Before reapair wiring - may Skoda Superb (2010) have an door impact sensor?

I have ab broken door wiring harness in my Skoda Superb (2010; 8004-AIT; German version). I think about to repair it myself. But I'm not shure if the Skoda has an door impact sensor. In this case I ...
marsh-wiggle's user avatar
3 votes
0 answers
58 views

Why is my 1993 Cadillac Deville acting like it's out of gas when the gauge says it still has fuel?

I have a 1993 Deville. I put gas in it until it flows out. My fuel data system will say it's full, but then when it reads 15 gallons, the car acts likes it's out of gas. What's wrong?
 Cord's user avatar
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9 votes
3 answers
11k views

Shouldn't my post-cat O2 sensors (lambda probes) be reporting varying numbers?

On my 2002 BMW E46 330Ci, I've been getting error codes 202 Lambda regulating limit Bank1 and 203 Lambda regulating limit Bank2. Here's the angry sensor readings from the INPA software: I understand ...
andrewb's user avatar
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3 votes
1 answer
3k views

Bosch MAP Sensor Voltage issue

For those who think: TL;DR long story short: I want to measure the voltage output at certain temperature but do not get a signal. Details: I have a BOSCH MAP Sensor here (0281006108), it has 4 Pins:...
AnyOneElse's user avatar
2 votes
2 answers
1k views

Car starts when it wants

I have a 2008 Toyota Corolla and I am having problems with it starting, it seems to only start "when it wants to". I have taken it to 2 Toyota dealers who can't find the problem with it. I have ...
Cherrie Bratchett's user avatar
4 votes
1 answer
2k views

2002 Yamaha YZF R1- Fault code 15

I have fault code 15 on my display. Checked the TPS, it has the right resistance on all cables combinations. Also correct voltage on yellow - black when its attached to wire harness and the ignition ...
A. Lenssen's user avatar
8 votes
2 answers
857 views

Coolant Level Sensor Connector Replacement

I'm looking for a replacement male connector to fit this coolant level sensor from a 1989 VW Jetta. Finding replacement sensors is straightforward, but what does one do when repairing a missing ...
Lyle's user avatar
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3 votes
1 answer
17k views

Where is the ambient temperature sensor located on an Opel / Vauxhall Insignia 2.0 CDTI 2010?

Can anyone offer some guidance in finding the placement of the ambient temperature sensor for an Opel / Vauxhall Insignia 2.0 CDTI 2010? The sensor seems to be malfunctioning. The value for the ...
user1969903's user avatar
7 votes
1 answer
3k views

Malfunctioning Ambient Temperature Gauge - 2004 Subaru Forester

I own a 2004 Subaru Forester XS with 102,000 miles on it and required service and inspections just completed. Now the Ambient Temperature Gauge keeps malfunctioning - often sticks at 77; after a ...
Joan's user avatar
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6 votes
1 answer
113 views

2001 Chevrolet Silverado Ignition

I drive a 2001 Chevrolet Silverado and I went out to start it so I could go to work this morning and it sounds like it's not getting any spark. it turns over and the solenoid turns on so its not the ...
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2 answers
202 views

Honda Civic O2 Sensor [duplicate]

Bought 02 upstream air fuel for 04 Honda Civic it came with a male connector while the old has a female connector the connector on the car is male so I cut the connector off the new sensor how do I ...
oral vernon's user avatar
2 votes
0 answers
185 views

Can steering wheel angle/torque sensor fit to a car that had it optional?

I need to read steering angle from a car for research purposes. My question is - can I fit a steering wheel angle/torque sensor to a particular car that itself has no ESP/ESC (Electronic Stability ...
Kozuch's user avatar
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2 votes
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Translating raw CAN responses into meaningful min/max/value

http://www.scangauge.com/support/x-gauge/xgauges-for-cansf-vehicles/ This website lists data reported by certain sensors. Lets take an example: Gauge = Short Term Fuel Trim Bank 1 TXD = 07E00106 ...
Soumya Sen's user avatar
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7 votes
1 answer
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Replacing a dashboard for another one with more indicators

I'm thinking of purchacing a Citroen BX dashboard from a superior model than my BX 14 wich currently only features a Velocimeter, fault lights and an analog clock, for one with various analog ...
EChan42's user avatar
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9 votes
2 answers
5k views

what sensors and formula are used to control VGT/VNT turbos?

I want to fit a variable geometry turbo to my car. Its vanes are usually controlled an electrical actuator (otherwise sometimes it's on vacuum). What information is used to to inform the state of the ...
Aaron Brick's user avatar
8 votes
2 answers
2k views

MAP sensor covered with gasoline

I have a 2007 Hyundai Accent SE with a 1.6 liter engine in it. It was stalling often so I hooked up a code reader and it said the MAP sensor was bad. I tried to check it to see if it might just be ...
tim's user avatar
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15 votes
1 answer
8k views

What is this thing hanging from a wire from the front headliner at the top of the windshield?

Had my windshield replaced last week, and then this week this black rectangular plastic thing dropped in front of me. Held in place by a wire attached to it going under the headliner - length of wire ...
davidbak's user avatar
  • 513
4 votes
0 answers
1k views

Peugeot 207 convertible: "impossible to move roof: outside temperature too low"

My Peugeot 207 convertible from 2007 shows an error when trying to lower the roof. "Impossible to move roof: outside temperature too low" According to the manual it should be functioning down to -15 ...
Patrik Berzander's user avatar
5 votes
2 answers
20k views

How much distance would 1mm off front brakes translate into?

I am planning to replace my front brake pads within a month. I was told that if my brake wear sensor trips, I will need to buy new sensors as they will get destroyed. So I am trying to save my brake ...
eYe's user avatar
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3 votes
1 answer
295 views

Sporadic speedometer, and performance lags when speedometer not engaged

I have a 2000 Honda Accord, 2.3L L4 with a 5-speed manual transmission. Recently, the speedometer has been sporadic- sometimes accurate, sometimes bouncing around, but mostly sitting at 0. I replaced ...
Jonathan Petry's user avatar
6 votes
1 answer
721 views

Rear ABS Sensors Peugeot 307

I have a Peugeot 307 and the passenger side ABS sensor had recorded a fault (after an expensive Diagnostics) so I replaced both rear sensors now there is an ABS fault on both rear wheels communication ...
Barkermn01's user avatar
14 votes
1 answer
37k views

How does the tachometer on my dashboard actually work?

Recently, I asked a question about the speedometer, how it works and how accurate it is. But that got me thinking... how does the rest of the dash actually work? I understand that the RPM measurement ...
Max Goodridge's user avatar
3 votes
0 answers
55 views

Chevy Cavalier 2002 2.2L

My antifreeze is leaking and my ECT sensor is wet. There is also smoke coming from the hose that's for the reservoir overload. What's going on?
Latoya's user avatar
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5 votes
4 answers
6k views

97 Honda Accord won't start after head gasket replacement

I recently replaced the head gasket on my Honda Accord. The cylinder head was tested at a machine shop and they also replaced the valve seals. I didn't do any work to the cylinders, except use ...
willpb's user avatar
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11 votes
5 answers
133k views

Car won't reach operating temperature

Here's a seemingly simple problem - I noticed that the temperature gauge of my mother's 2004 Opel Meriva 1.7CDTI won't ever climb above minimum. I checked the OBD readings to see if it was a defective ...
I have no idea what I'm doing's user avatar
5 votes
4 answers
12k views

judging oxygen sensor quality

I was looking at oxygen sensors for my vehicle on rock auto and found large price discrepancies. I saw sensors ranging from $25 up to $100. in general what do the more expensive sensors have that the ...
Robert S. Barnes's user avatar
1 vote
1 answer
558 views

How to choose Car Tyre Pressure Monitor Valve Stem Cap Sensor Indicator

I would like to fit Car Tyre Pressure Monitor Valve Stem Cap Sensor Indicators to my Skoda Citigo, where the cold tyre pressure is supposed to be 26 p.s.i. There is a wide range of these available, ...
Harry Weston's user avatar
2 votes
3 answers
1k views

Accord 2002 SE Temperature gauge

I need a piece of advice about my temperature gauge. I want to determine what is wrong: my sensor or my gauge panel. I tried to disconnect sensor connector and connect it to new sensor, but gauge didn'...
arseniyandru's user avatar
2 votes
0 answers
2k views

Fiat 500 (2010) airbag replace - crash sensor help

Recently replaced airbags in a fiat 500 1.2L (2010 model). I've also cleared the crash codes/data from ECU. I assume I would have to replace the front crash sensor as well, but couldn't locate it. ...
G.ktorou's user avatar
4 votes
0 answers
907 views

Wire front camera+sensors+display on SINGLE Ignition switched 12V wire

I want to install front parking sensors & camera (+display). So I have: Kit of 4 sensors + controller Camera Display Basically I know how to install & wire them, the thing I don't sure is: ...
michael's user avatar
  • 165
2 votes
1 answer
1k views

06 Pontiac Torrent 3.8L V-6 temp gauge stopped working and cooling fans started running constantly when engine is running

06 Torrent V6 the temp gauge stopped working and the cooling fans run all the time when engine is running. I checked the relays and sensor plugs and they were fine, so I replaced the coolant temp ...
mach1shotgun's user avatar
2 votes
1 answer
927 views

Wiring both reverse sensors & camera on reverse light - Short circuit threat?

I want to install both reverse sensors & screen+camera. My challenge is with the power wiring. Both the screen and the sensors controllers need these wiring: Power from the accumulator Control ...
michael's user avatar
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3 votes
0 answers
1k views

Replace 2009 Cobalt LNF Fuel Tank Pressure Sensor and Shroud

How difficult is it to replace the fuel tank pressure sensor and shroud on a 2009 Chevrolet Cobalt (LNF/SS)? The shop just quoted me over $200 for this. From what I can tell, the parts should be ...
John's user avatar
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3 votes
1 answer
8k views

2001 Toyota Sienna LE P0330 Error

I don't know much about cars, so I might get some terms wrong. My girlfriend drives an '01 Sienna LE and for a couple months the check engine light has been on. When I took the van to O'Reilly's and ...
Cora's user avatar
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10 votes
1 answer
8k views

Skoda Fabia - reverse parking sensors not working?

I bought a used Skoda Fabia that is fitted with a parking assistant (reverse parking sensors) which does not seem to work. According to the manual when I change into reverse it should either make a ...
magnattic's user avatar
  • 201
3 votes
1 answer
2k views

Can I fit parking sensors on the front of my car?

I'm getting a reversing camera for the back of my car, as I often have to park in very tight spaces, or am parked in. However, I can't fit a camera to the front, so I was wondering: Can I fit rear ...
George's user avatar
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5 votes
6 answers
8k views

Since when is CAN bus mandatory for new vehicles?

The CAN bus Wikipedia page states that: CAN bus is one of five protocols used in the on-board diagnostics (OBD)-II vehicle diagnostics standard. The OBD-II standard has been mandatory for all ...
Kozuch's user avatar
  • 1,305
5 votes
2 answers
202 views

Why don't thermostats have a sensor?

One of the more common reasons of overheating is a stuck thermostat. One of the most common reasons for blown head gaskets is overheating. One of the most expensive vehicle repair procedures is head ...
amphibient's user avatar
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4 votes
0 answers
1k views

ESP warning light on

Audi A3 8PA 2005my 1.9tdi Esp warning light is on and diagnosis with VCDS shows fault :- 00493-ESP-Sensor unit (G419): No signal/Communication No other warning lights are showing. I have tried ...
MAK's user avatar
  • 41
4 votes
2 answers
7k views

Volkswagen Golf MK4 - Oil temperature sensor coding out

I have a Volkswagen Golf MK4 TDI 85kw (AJM). After driving for a while and stopping, when I turn the ignition on I get an "Oil sensor workshop" message. After connecting VCDS I got this ...
Einius's user avatar
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