A device that monitors a particular function and provides data to be consumed by other systems to adjust and attribute to that system based upon the information forwarded by the sensor.

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2answers
16 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 ...
2
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0answers
16 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 ...
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0answers
13 views

TXD, RXF, RxD, MTH understanding and decoding

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 ...
7
votes
1answer
92 views

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 ...
8
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2answers
45 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 ...
3
votes
1answer
238 views

Mercedes OM636: Can I Resolder Wire to Coolant Temperature Sensor?

The wire contact connected to the Coolant Temperature Sensor of my Mercedes OM636 (Boat engine same as Mercedes 170D, 180D) was corroded and got accidentally snapped off. Can I just solder this back ...
7
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2answers
35 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 ...
7
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1answer
6k views

Can I use an OBD2 Scan Tool on older GM vehicle?

I can get an adapter that connects my OBD2 scan tool to my 12 pin GM scan tool connection. But will the tool be able to read the codes and tell me anything useful? Or do I need to get a scan tool that ...
10
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1answer
121 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 ...
4
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0answers
42 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 ...
5
votes
2answers
137 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 ...
6
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1answer
36 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 ...
3
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1answer
36 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 ...
12
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1answer
163 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 ...
9
votes
3answers
2k 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 ...
10
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1answer
695 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 ...
4
votes
1answer
745 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 fault: ...
4
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0answers
22 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?
4
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3answers
106 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 ...
3
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0answers
121 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 ...
4
votes
1answer
625 views

Is this repair estimate for misfiring and fuel trim on a '98 Mercedes reasonable?

Just got a '98 Benz ml320 and two days later it cut off on me, twice, within about 5 minutes. I took it for a diagnostic. I'm wondering how overpriced this estimate is and possible ideas of best ...
5
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3answers
142 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 ...
4
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1answer
555 views

Fiat 500 Airbag Sensor

My Fiat 500, 2008, 1.2 Pop, 51Kw has had its front left side somewhat crushed. The body has been fixed for the most part, but the electrician/mechanic tells us he cannot turn on the vehicle in order ...
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1answer
45 views

Polo 1,6 TDi 2010 Jerking and getting gradually worse

About 5000km after my 105000km service my car started to jerk slightly under 3000 revs as if it wasn't getting any fuel. I had all the sensors replaced that the computers picked up as faults [O2 ...
1
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1answer
52 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, ...
2
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3answers
25 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 ...
2
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0answers
156 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. ...
4
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0answers
102 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: ...
2
votes
1answer
63 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 ...
2
votes
1answer
79 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 ...
3
votes
1answer
421 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 ...
3
votes
3answers
3k views

Outside temperature displays wrong values in Peugeot 207

For some weeks now my mother-in-law's Peugeot 207 (2009 model I think) shows a wrong outside temperature. While the actual outdoor temperature has been somewhere around freezing (0°C) the temperature ...
3
votes
1answer
157 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 ...
1
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2answers
148 views

1999 Grand Prix Issues

I bought this car used 3 yrs ago. Previous owners spun bearings in motor and replaced with 03. I had numerous issues with the cooling system and overheating since I purchased. I replaced water pump, ...
3
votes
1answer
102 views

Maintenance of parking sensors

I have issues with the parking sensors on my wife's S-max (2007). The sensors would occasionally beep (constant beep) after turning on the car and selecting a gear. I tried cleaning them, but I ...
5
votes
6answers
2k 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 ...
3
votes
1answer
85 views

Tire pressure sensor doesn't read

I work on several makes and models, and found that after replacing brake pads that the "low tire pressure" warning comes on as a sensor fault. Is there something I'm hitting that causes this? How can ...
4
votes
2answers
92 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 ...
4
votes
0answers
400 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 ...
5
votes
1answer
107 views

Mystery Sensor on Manual Transaxel Housing

I have a 97 Mazda - 323 S V (BA) - 1.8 i 16V (114 Hp) with a manual 5 speed transmission. While trying to change the oil, I noticed the following connector, with one missing wire on what I think is ...
8
votes
1answer
564 views

Proper way to do maintenance on an air bag system (SRS)?

My air bag system light started coming on a while ago. Sometimes it will come on and stay on, other times it will go off after a while. This usually happens when it starts raining out. I did some ...
0
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4answers
2k views

How do I correctly monitor the fuel(diesel) in the automobile?

This is my first question in mechanics.stackexchange.com. I am a computer programmer and work in Location based services. Along with GPS monitoring, I want to give the clients , a proper manipulation ...
3
votes
1answer
147 views

97 Mazda 323: Where is the IAT sensor?

On my 97 Mazda 323 BA 1.8L BP-DOCH I can't seem to find the IAT sensor. It has a B6BF MAF with a 5 pin connector, but I don't see anything else between the air filter and the throttle body. On the ...
3
votes
1answer
50 views

Positioning of a resistor

Apologies in advance, my electronics knowledge is very poor. I've got myself a resistor that I believe is appropriate for the job I want to do on my vehicle. I'm replacing the factory sensor; there ...
0
votes
1answer
263 views

1995 vw golf 3. need to know where camshaft position (hall) sensor

I have a 95 VW Golf Mk3 and it has been running like crap. I first thought it was bad gas because of how it drove. Now it keeps driving like that but worse. It stutters when trying to pick up speed at ...
2
votes
1answer
2k views

How Much Deviation from Ambient Temp is Normal for IAT sensors?

I've noticed that my air intake temp sensor gives the correct ambient temp reading in the morning when the engine is cold, but that it typically is giving me readings between 7 to 17 degrees Celsius ...
1
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1answer
398 views

MAF sensor output signal vs. RPM?

I read that the MAF sensor output voltage increases as RPM increases. The ECU uses this voltage to determine other things, like idle RPM, ignition timing, fuel injectors, etc. Where can I find the ...
1
vote
1answer
6k views

My radiator fan keeps on right after shutting off the car (Hyundai Accent 2002 GL 1.6)

My car radiator fan keeps on working right after shutting down my car, which is strange and never happened before. I suspected the temperature sensor, but through the OBD II kit, I am able to read ...
1
vote
1answer
511 views

Engine hesitates when accelerating - 1996 Sunfire

I have a 1996 Pontiac Sunfire with the 2.2L engine. When I accelerate slowly the engine seems to run fine. However, if I accelerate quickly the engine seems to hesitate. I have already replaced the ...
2
votes
2answers
392 views

How do Lojacks work? Are there alternatives?

So I was at a dealership recently and of course they advertised the typical Lojack. No doubt I feel these things are useful but it seems the price actually fluctuates (one dealership was selling to me ...