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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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Parking sensors and towbar, how to diagnose

I've got a 2009 Ford Galaxy that has front and rear parking sensors. We went away last weekend in our caravan and so had to attach our detachable towbar. There's a probem with the towbar now meaning ...
1 vote
4 answers
182 views

List of sensors on cars

Over the years, I have gone from being frightened to performing repairs involving sensors to feeling like sensors are my best friends. They greatly reduce the guesswork necessary in repairing a car, ...
1 vote
1 answer
97 views

2000 Chevy 3500 Express strange MAP sensor OBD-II readings

A 2000 Chevy 3500 Express 5.7 Vortek has always run fine but has a major problem with torque when towing uphill. By chance I stumbled across the MAP OBD II readings and they are way off. It shows 9&...
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Are Code Readers able to Detect Timestamps?

The 2019 Van with around 90,000 miles on it was in the repair shop for past 4months cause it was in a wreck. After gettin it back I noticed it wasn’t running good and was acting up pressing the gas ...
1 vote
1 answer
21 views

Buick verano transmisión

I had the transmission recently replaced on my Buick verano 2016 they said if I had any problems with it it has guaranteed no they say I need to replace the speed sensor doesn't the speed sensor part ...
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1 answer
186 views

Can the vehicle speed sensor (magnetic type) be activated outside the gearbox?

Could the speed sensor be activated when pulled out of its mount, if I pass a piece of metal near it will the speedometer register it? Does it work using some other data or does it only register ...
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1 answer
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How to fix a speed sensor signal problem?

TL;DR - My transmission computer says its output shaft speed sensor reads 0, what is wrong? I am trying to troubleshoot a problem I am having with the speed sensor on an older automatic transmission, ...
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0 answers
23 views

Sill Protector Illuminated verify lights off

I just got Illuminated Sill Protector Installed in My Car - Mahindra XUV 3OO. I cannot verify with certainty but I feel that the Sill Protector lights remain ON even when the door is closed. Is this ...
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1 answer
117 views

Where can I find information about car PIDs?

i'm doing a research and i can't find voltage information from the car sensors, where do you find such information? finding the voltage range would help a lot.
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188 views

Threadsealant on radiator fan switch to stop leak?

I've developed a leak from the radiator fan switch and it seems to only be leaking around it and not through it, otherwise it works fine. I've bought a new washer to replace the old one and I'm ...
2 votes
1 answer
42 views

Where should an oil sensor go in on a straight 6?

Recently sourced VHX Dakota Digital gauges for an 84 c10 that has a straight 6. Found how the speed sensor should go in, the water temp sensor is attached to the inlet replacing what’s there but I’m ...
1 vote
2 answers
142 views

Car Scanner Pro iPhone App Showing TCM 193km/h When Car is Stationary

Greetings from Australia. I hope someone can advise me on this? I have a Renault Koleos 2011 2.5L H45 4WD CVT auto car, which globally is based on exactly other models - the Nissan X-Trail T31, the ...
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1 answer
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If repairs are made to fix Nissan DTC codes, will they still appear in the computer?

I have some codes on my 2019 Nissan Altima indicating a problem with the forward sensor. I was told it was fixed but the codes are still there. How can I tell if this problem existed before I bought ...
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1 answer
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Transmission Slipping, Mechanic Claims it needs re-build, then it suddenly starts working again - 2000 Nissan Xterra

The transmission on my 2000 Nissan Xterra with 114,000 miles randomly started slipping one day. It does seem to be slipping somewhat in all gears, but it's most prominent in 2nd and 3rd. If I keep ...
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Audi a4 b6 bonnet sensor warning on dash

Can anyone help with the bonnet open on dash. How and where is it best to bypass the sensor. If the wires are left open still have warning and if tied together still have warning? Do i need to bridge ...
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1 answer
52 views

Replacing oil pan

When replacing an oil pan, I will have to remove a motor mount and jack the pan up a few inches, followed by wedging sm block by harmonic balancer. To keep it up. I have never done anything like this. ...
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2 answers
6k views

Fixing a malfunctioning seat belt sensor

I'm in the far end of a road trip, and towards the end of the road trip my seat belt warning started going off erratically. Tapping on the driver side seat belt buckle seemed to silence the warning ...
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08 Prius - Does hatchback door need replacing when just the handle is broken?

My son's car 2008 Toyota Prius. His hatchback won't open, so he took it to a body shop, who said the entire hatchback door needs to be replaced to fix the locking mechanism. It'll be in the shop for ...
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1 answer
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Ambient temperature sensor peugeot 207cc 2014

My ambient temperature sensor reading always in - so had the sensor replaced and its still showing the same fault. Peugeot 207cc 2014. Can you reset this or can someone help me and tell me what's ...
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2020 chrys Pacifica horn won’t blow; Adaptive Cruise cntrl and More won’t work after minor bump to front left corner of bumper

Had minor bump to the left corner of the front bumper. NOw the horn won’t blow; the ACC Adaptive Cruise Contl; Forward Collision Warning won’t work. Engine runs hot at 240 degrees instead of normal ...
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1 answer
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Safety of running without clutch start sensor Ford Ranger 95 STX SuperCab

The clutch start sensor on my Ford Ranger 95 STX SuperCab gave out and I bypassed it, for now. It's becoming very hard to find a replacement that can be imported to Brazil, so is there a problem with ...
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37 views

I have a Gardner Denver RBS 145/LHBD Blower, Compatible oil level sensor?

We have a Gardner Denver RBS 145/LHBD blower which shut off due to a low oil level. The sight glass for the oil level is in an inconvenient spot that also is potentially hazardous to get to while the ...
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61 views

How does garage door opener detect car's trunk door is open?

Today, I accidentally leave my Minivan's trunk door open inside the garage. When I press the garage door opener's close button, it detected the trunk door, and the operation was canceled. I have ...
1 vote
1 answer
107 views

How to access AC Flow Sensor on a 2011 Lexus R350

How can I access the AC Flow Sensor on a 2011 Lexus RX350? I opened the hood, remove the plastic covers, can't find it. Do I need to go under the car to get access to it?
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1 answer
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RPMs at 0 while driving. Can't re-start car without 45 min cooldown but then runs normal for 30 min

During my last road trip I encountered the weirdest issue with my 2011 Hyundai Accent. On the highway the RPMs went down to 0 but I was able to drive completely normal. After I turned the car off, I ...
2 votes
1 answer
247 views

97 Chevy Tahoe 4x4 - Speedometer is reading 10 mph fast and fuel consumption seem to be up

I replaced the Vehicle SpeedSensor that’s on the tail shaft of gear box nothing changed. I would like to know if there is another sensor that affects the speedometer possibly inside the transmission ( ...
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318 views

How to find the typical ranges for sensor values?

I've recently got an OBD scanner and have found some of the live data streams to be very useful, I was monitoring the timing advance value and observed it fluctuating at idle by 10 deg or so the range ...
2 votes
2 answers
412 views

How to fix oil pressure switch terminal cover

I have a 2001 Honda Accord and I'm changing the oil pressure switch / sensor. The terminal cover crumbled apart when I took it off. I couldn't find a replacement part for it, so is there some way to ...
4 votes
1 answer
276 views

Saturn ion 2007 Temperature gauge

My car temperature suddenly drops down while driving and won't move until I remove the battery and put it back... What could be the cause pls? I have change the engine coolant temperature sensor or do ...
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139 views

Honda Civic mk7 ABS sensor diagnosing

I have a permanent ABS warning on my dash. I have tried to use an OBDII scanner to diagnose it. However, the car does not support any error codes apart from engine management codes. Therefore I will ...
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46 views

Low coolant sensor light doesn't turn on

My '04 Chevy Silverado recently had a coolant leak, and I never received a warning light or dashboard message. I tried unplugging the sensor and still nothing showed up. I tried plugging into a new ...
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48 views

After Market Tire Pressure Monitoring System Question

I have looked into the ways that various types of tire pressure monitoring systems (TPMS) work. It seems that the typical factory installed active monitoring systems use pressure sensors that are ...
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3 answers
255 views

Installing after-market seats

So, I want to upgrade my standard seats (Leon Cupra MK3, same platform as Golf 7). Being a newbie, I thought I go online, I select a seat model I like, I fill in the car model and just put it in my ...
3 votes
5 answers
20k views

Hood sensor latch faulty

I have a Audi A4 B8 2009 model. I am running with a very stupid problem causing a great amount of pain. So, just a few weeks back, the "front hood (bonnet) is open" indication started showing up on ...
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54 views

Flashing overdrive light 2002 ford escape

2002 ford escape xlt-flashing overdrive light comes on after short period of driving. Comes on when approaching 50 mph? Or so...how do I fix it?
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463 views

2014 Chevy Malibu - Code P055B

I keep getting a P055B code, but I have changed out the sensor twice. The mechanic cleared the code but it keeps returning. Any suggestions?
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1k views

Sudden notification of parking sensor repair on dashboard while driving

So I was driving my Vitara Brezza yesterday morning during rains. When I got my car out of the parking I had performed a reverse and worked as usual without any problems. The car hit the road before ...
1 vote
0 answers
59 views

2007 VW Touareg V6 TDI BKS engine query on normal EGT values on idle and load

I have a 2007 VW Touareg 3.0 TDI, BKS engine whose Exhaust Gas Temperature values (Read under Measuring Value Blocks 102.1 and 102.2) are as follows: 102.1 fixed at a constant 551.0C 102.2 fixed at ...
3 votes
1 answer
97 views

Jeep Patriot RPM Gauge bounces / not right

I have a Jeep Patriot 2012 2.4L 4 wheel drive limited. While all other dash gauges work well with no issues, the RPM gauge will stick (not move after a certain position, around 1000 RPMS and then ...
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 ...
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2 answers
4k views

Ideal TPS Voltage Range for calibration

Some manufacturers state an ideal range for throttle position sensor which is helpful if you want to calibrate a new sensor or re-calibrate the old one. For instance, they say 0.5 V for idle and 4.5 V ...
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2 answers
4k views

Feels like ABS kicks in when braking

For the past week, my car (a Hyundai Tucson 2016 and 80 000 miles) started doing like ABS kicks in when braking, but rarely. It feels like when you're braking on ice (pedal starts vibrating) for 1 ...
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1 answer
804 views

Toyota Funcargo (Yaris Verso) 1.3 VVTi (2NZ-FE) connector near oil filter

I was seeing my Yaris Verso VVTi 2NZ-FE engine and a cable was hanging (with light grey connector, 4 pin socket, and a single wire line) that is not connected anywhere. I tried to search for the ...
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49 views

How and what would I get from a car rain sensor?

I am looking for an answer on how to acquire data for the vehicle rain sensor and automatic wiper data from any vehicle. For example, I know that with Carberry (a Raspberry Pi) it provides a lot of ...
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1 answer
1k views

Where is location of AC pressure sensor on 2007 Buick Lacrosse?

I will replace the AC pressure sensor/pressure switch on my 2007 Buick lacrosse. I don't have lots of experience but I am learning. I recently changed the oil, flushed the coolant, replaced the ...
1 vote
1 answer
757 views

DTC B1227 - An open in outside temperature sensor circuit - AC not working

I have Acura RDX 2007 and the AC does not work. I took it to dealership/mechanics and they saw that the outside air temp sensor somehow banged condenser and had to replace the condenser. The ...
1 vote
2 answers
43 views

How to decide which check engine reading is faulty?

03 Honda CR-V. Check engine light just came on. O’reilys scanner gave a long list of readings... wondering if I should try bring it in or figure out a way to narrow it down beforehand.
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1 answer
174 views

Do I need to replace the fuel pressure sensor of a 2007 Volvo XC90 V8 AWD?

I have a 2007 Volvo XC90 V8 AWD. The dealership told me that the check engine light came on intermittently and the reason was the fuel pressure sensor is faulty. It costs $525 to replace it. Is this ...
1 vote
0 answers
400 views

Emergency brake light is on and stays on

The van (iveco daily, sorry don't know the type anymore) of my father has a brake warning light on. Once I removed te cover I saw it was a single wire that was disconnected from the switch. I thought ...
1 vote
0 answers
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Honda Civic 2018 blind spot information system warning

My Honda Civic 2018 had an accident and it was in a repair shop for a while. After the repair, there was a warning on the dashboard with below icon. When I asked about this from the mechanic, he took ...

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