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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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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 ...
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Are there any expected problems when I manipulate the air temperature sensor to show a cooler termperature?

I have a modern motorcycle with fuel injection. It runs lean and especially under 4,000 RPM that is annoying because the engine runs rough. It seem this is a well known problem with modern engines ...
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Ambient Air Temperature

Put a plow on my 2014 1500 Silverado after driving for about 20 minutes temperature outside reads over a hundred can i reposition sensor or remove it.
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2005 Ford Escape (Hybrid) Hood Ajar alarm triggered when left blinker is on

I seem to be having an electrical issue with my 2005 Ford Escape Hybrid. Whenever using the left blinker, the Hood Ajar alarm goes off and continues beeping until the blinker is turned off. It does ...
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P0406 Error - Ford Figo

I bought a second hand Ford Figo 2011. The vehicle has driven around 56k kilometres. Recently there was an issue with the starter motor, which I got fixed. After that the Check light is on. The Ford ...
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1answer
145 views

How often should we change Coolant Temperature Sensor, and is it life time long?

I drive Nissan Sunny 2010 N16, it has 225000 KM, I am experiencing extra fuel consumption, for 45 Ltr it makes only 350 KM in average (high way/city) driving, one week back I changed the oxygen sensor ...
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199 views

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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1answer
37 views

What kind of MAF sensor is this?

A Bosch MAF sensor from a 1994-1996 Volvo looks like this: I have read about different types of these old sensors and they all mention a "wire", however I cannot see a wire in this sensor, just a ...
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02 Taurus no acceleration, miss shifting, and no power

I have a 2002 Taurus 3.0 OHV. I'm getting no acceleration, miss shifting, and no power. I installed a new EGR control valve, differential pressure sensor, air filter, and coolant temperature sensor, ...
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device/rig to establish ground truth data about car parameters [closed]

We are looking to conduct research into automotive technology and were wondering if there exists some device/rig that can help in measuring vehicle parameters to establish ground truth. We would like ...
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1answer
285 views

Seat occupancy sensor malfunction VW Jetta 2008

I have a problem with the passenger seat occupancy sensor. It doesn't understand if someone is seating and the seat belt warning light doesn't turn on if the passenger is not wearing his seat belt. ...
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engine oil temperature sensor problems

I'm Getting a dtc for the eot sensor low voltage. According to the manual this happens when the voltage is less than 0.07v. The connector is plugged in properly. I have checked continuity between the ...
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06 Jeep Cherokee 8cyl; Auto transmission

It seems that I am annually having to replace the “map sensor” and various parts associated with that. Last week I replaced it again, and next will be the “auto throttle body” or something with the ...
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Hi I’ve got a 2013 insignia 2.0CDTI coolant problems

Coolant warning message keeps coming up on dash checked level ok replaced sensor but message keeps coming up help
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ABS/ stabilisation control error

I have polo 1.2Tsi 2015 model, here is the problem : my clutch eas dead and i bought new one and fitted it in, after i started the car it did not move at all, it showed ABS/ STABILISATION CONTROL ...
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W204 C180 Manifold absolute pressure sensor

I am trying to install a RaceChip unit in my car. I need to find the Manifold absolute pressure sensor. I am aware that it’s near the air box, but I can’t find it. Here is where it should be: Here ...
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i have a 2008 chevy trailblazer 4.2 i need to change the ECT sensor

I can not seem to locate the part on my vehicle i have looked at you tube videos and have found every one except 2008 4.2 engine
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Toyota Gaia 2001 model. ABS check light showing. Speedometer not working

My car is showing ABS check light, the speedometer is not working. The fuel consumption is high, and it's slow in changing from first gear. I don't know if any of these faults are connected. What ...
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1answer
124 views

car fan kicking in even when the engine is cool

I have a 2010 Citroen C3 Picasso 1.4 petrol. A few months ago my car fan became very noisy after a long journey. Since then the car control panel is telling me the engine is overheating even if I have ...
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259 views

2006 BMW E 60 525I engine oil level sensor giving faulty reading

The electronic oil level sensor is giving a faulty indication, by using E 20 engine flush chemical, can I clean the sensor and clear the fault?
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Truck fleet monitoring project

I need to design a truck fleet monitoring system and make a prototype of it during my traineeship this year. I've been looking into the different buse networks that are already implemented in trucks ...
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2answers
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Will having the door light on all the time hurt the battery? Is it easy to fix on suzuki xl7?

I have a 2003 suzuki xl7 that I've been running for 10 years. The door sensor is wacky now and is on almost all the time. It reacts when I'm driving and when I park is always on. I've tried to get ...
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1answer
566 views

2001 VW Passat - Repair or Replace Brake Pedal Sensor

I recently found that the brake sensor in my brake pedal isn't working. This is the sensor that both allows cruise control to engage/automatically disengage when you hit the brake, and the same sensor ...
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1answer
847 views

2002 lincoln LS 3.9 v8. coolant temperature sensor location, does anyone knows where is it at?

the computer is saying that the temperature sensor is bad. i want to replace it, but i can't find where is it at. engine light is on. I have look for it all over google, the auto parts store, and ...
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3answers
2k views

How should Camshaft Position Sensor output look on oscilloscope?

My Chevrolet Aveo 2007 had P0340 code and crank, but no-start condition. I bought a replacement camshaft position sensor. The P0340 code is not there anymore, but the car still does not start. First ...
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4answers
8k 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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170 views

1997 Blazer, GM 4.3: Intermittant transmission symptoms. Key stuck, torque Converter and solenoid codes

Curious transmission symptoms the other morning. A few details to build the context: First I was the OP for this question, same vehicle...'97 Chevy Blazer, 4.3, 4wd, 257k miles on the original engine ...
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Need Help Identifying Sensor Connectory - 1996 Chevy G10

I have a 96 Chevy G10/Express Van with a 5.0 V8. I noticed that there is a "dangling" connector, but am having trouble locating where it goes. It is located on the driver's side, and can be accessed ...
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509 views

Can not working upstream sensor cause engine overheat?

I was in service and they removed the FAP filter and programmed the engine computer so that it would not ask it. But there were still errors and they said I need to change the upstream sensor. I ...
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179 views

Camshaft position sensor low input on Hyundai Accent 2008

Hi I have a no start on this car. It drove home fine then wouldn't start the next day. Timing, battery, starter, relays, fuses, immobilizer, spark and fuel all check out fine but code is p0342 for ...
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1answer
454 views

Hyundai Accent mysteriously stopped starting

Just bought an 08 accent with 132 kkm a few weeks ago. Ran great until I drove it home one night and the next morning it wouldn't start. The starter spun but didn't engage flywheel so naturally I ...
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1answer
368 views

Does the dash temperature sender unit also provide input to the ECU?

The temperature gauge on my 98 Mazda 626 2L MTX recently went all wonky, most of the time it's pegged low, but sometimes in just jumps around, but never above the actual temperature of the engine. ...
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1answer
1k views

2008 Malibu LTZ ECT sensor location

Where is the engine coolant temperature sensor on my 2008 Malibu LTZ, with 2.4L Ecotec engine? I've checked online and can't seem to find a good video or guidance. I thought it would jump out at me ...
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What to do with aftermarket radiator as far as installing engine coolant sensor

2002 buick century custom 3.1 I bought an aftermarket radiator for 2002 buick century custom 3.1. The new radiator doesn't seem to have a place for the engine coolant sensor. What should I do? Is it ...
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1answer
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07 Escalade - Unknown sensor

I'm chasing what appears to be a bad shock on my 2007 Escalade (AWD), and I found this... sensor? It's a small, cylindrical widget on the end of what I assume is part of the wiring harness. (My ...
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434 views

Where's the temperature sensor on Skoda Fabia 2005?

I've already bought a diagnostics machine based on this other Q&A Skoda Fabia 2005: what I need to know to buy a diagnostics machine? The whole diagnostic machine has provided me OBDII P0118 ...
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Why is it still overheating

I have a 99 V-10 Triton that keeps over heating. I have replaced the water pump, thermostat, and heater core, flushed the entire system and put a dual electric fan on it. It was good for awhile. ...
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Can a bad coolant temperature sensor or a bad wheel bearing hub cause my check transmission light to come on?

I have an 05 Ford Explorer Eddie Bauer. The check transmission light will come on and the o/d light will flash after driving it for a while. I know my rear hub needs to be replaced, but recently was ...
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1answer
2k views

Can I test the parking sensors on my 2007 Chrysler Pacifica with a multimeter?

I have a 2007 Chrysler Pacifica Limited which throws a SERVICE PARK ASSIST message after putting the car in reverse. As part of diagnosing the problem I took the car to the dealer and they said two ...
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2answers
359 views

Why won't my '05 VW Caddy rev past 3500rpm?

I've got a '05 VW Caddy 2.0 SDI here that didn't run at first. Scanning the OBD (with a chinese knock-off ELM327 scanner, and the Torque Pro App) gave me a P0726 fault code. The description says "...
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20k views

Tricks for disconnecting sensor connectors

Cars these days have a lot of sensors. A lot of these sensors are connected using some kind of plastic clippy. There are numerous different kinds of plastic clippys in production. This question is ...
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2k views

Location of the fuel level sensor?

What is the location of the fuel level sensor on a 2008 Hyundai Santa Fe GLS 2.7L V6? Is there a special tool needed to remove the fuel level assembly from the gas tank? "P0464 code: Fuel level ...
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2answers
105 views

Slightly low MPG - need help with my checklist

I own a '91 Ford Sierra 2.0 8V SOHC. Fairly simple engine, utilizes a Bosch L-jetronic fuel injection system. (EFI has following components: MAF, MAP, TPS, IAC, narrow-band o2 sensor, TFI module for ...
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1answer
361 views

Camshaft sensor testing

this is a 2004 accent diesel , using the scan tool I get bad camshaft sensor malfunctioning and using the multimeter I got those readings on its terminal ( same connected or not ) 0V , 5V , 12V. ...
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2005 Kia Sedona sensor question

This might be a silly question but do I need dielectric grease to install an ignition failure sensor where it mounts on to the thermostat housing assembly?
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1answer
456 views

Can the fuse cause my fuel pump not to turn on or is it the camshaft sensor that doesn't let my fuel pump to turn on?

I have a 1998 Ford Explorer that does not start cranks but doesn't start. I've replaced the starter and battery so far. After replacing that it didn't want start just cranked. I thought that it may ...
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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 ...
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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 : -...
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1k 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 ...