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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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 ...
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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 ...
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1995 VW golf Mk3. need to know where to find camshaft position (hall) sensor
I have a 95 VW Golf Mk3 and it has been running badly. 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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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, ...
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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 ...
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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 ...
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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 ...
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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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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 ...
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ABS break sensor melted in mazda 3
I have a 2007 Mazda 3 (2.0L). Recently, I took apart the front axle in order to replace the half-shaft on the driver's side. At the same time, I have replaced my brake caliper because I realized (...
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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 ...
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steering angle sensor in indian cars
Does Indian cars have steering angle sensor?
Actually what I have to see if a car travels straight when made to move on straight line and determine if there is some problem with alignment.
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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 ...
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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 ...
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P0420 code for 09 Murano
I've had several opinions stating my car needs a cat converter but after failing inspection today, the mechanic said it might need ECT sensor changed. I've read previous posts that cat converters ...
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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 ...
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Automobile EDR / Black Box - What is it for?
My partner has just started driving, and her insurance company have fitted a "Black Box" to her car.
My understanding of these devices is somewhat vague, as some sites suggest that they only collect ...
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Front grill electrical component near radiator
I have a 2008 Mazda 3, and unfortunately I ran over some road debris (probably a tire or something, I didn't get a good look at it). My local Mazda dealer checked it out and said there was nothing ...
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Maxima (2002) MAF Sensor Failures
I have a 2002 Nissan Maxima that I've owned since 2003. I'm now on my sixth Mass Air Flow (MAF) sensor. What seems to wipe them out is hard acceleration (3/4 throttle - not so extreme as to induce ...
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Reverse parking sensors
I've been thinking on fitting an after-market reverse parking sensors for my car, and I found 2 options:
Electromagnetic
Ultrasonic
The Electromagnetic doesn't require to make holes in the bumper, ...
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VW Jetta 2002: O2 Sensor Heater Malfunction; how serious is this?
I have received an error code from my Jetta 2002:
16525 - P0141 - O2 Sensor Heater Circ.,Bank1-Sensor2 Malfunction
Would anyone suggest, how serious is the problem? Does it have to be fixed asap or ...
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P2238 Positive Current Circuit Low on Toyota Camry 2004
I'm getting P2238 Positive Current Circuit Low from my car, for O2 Sensor in Bank 1 Sensor 1 for my Toyota Camry 2004 (4 cylinder). What is it and how can I fix this problem? From what I've read on ...
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P0136 Bank 1 Sensor 2 - Sensor location
I'm getting P0136 bank 1 sensor 2 circuit malfunction from my Toyota Camry 4 cylinder, which from past experience means I need to replace it. I've replaced the O2 sensor in the exhaust manifold ...
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Do all engines typically support the installation of a crankshaft position sensor
I have recently purchased an 800cc dune buggy but unfortunately it doesn't come with a RPM sensor so I have been looking at my options in terms of installing one. In the process I have found that the ...
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Audi A3 Brake warning after MOT
just dropping in to show my support for this forum and to ask a quick question!
Had my '06 Audi A3 2.0 TDI Quattro Sport serviced and MOT'd yesterday. Knew my front pads were very worn (tried to ...
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Engine Coolant Temperature sensor goes bad whenever the outside temperature is hot
This is on a 1998 Chevy Cavalier, automatic transaxle, 2.2L. This sensor went bad last July and I replaced it then. When it goes bad, the check engine light comes on and then the temperature gauge ...
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Can anyone identify this part on a '96 Honda Prelude?
I have an image of a particular part on my '96 Honda Prelude and I have no idea what it is. It's connected to the power steering and is some kind of sensor. Anyone have any insight?
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Where exactly is the Check Engine Light connector on a 1997 Honda Honda Civic?
The check engine light on my 1997 Honda Civic lit up. I came across a method for troubleshooting (http://honda-tech.com/showthread.php?t=1901557) but I'm having trouble finding the connector. Can ...
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Do newer cars actually monitor the quality of oil? [duplicate]
Possible Duplicate:
How does the change oil light system work and does it matter what type of oil you use for it to work properly?
Starting last August, I am currently leasing a BMW 328i coupe. ...
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Check engine light on for O2 sensor (Oxygen) but O2 sensor has been replaced
Someone told me it could be a minor leak somewhere but the check engine light does indicate the above on Mazda 626,year 2000. Could the code be misleading?
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Can I easily replace the Throttle Position Sensor on a 1999 Maxima?
My '99 Maxima's Check Engine light came on recently. I whipped out my OBD-II reader, and pulled off two codes.
P0325 (Knock Sensor)
and
P1705 (TPS)
Reading online it appears the knock sensor ...
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Symptoms of failed speed sensor code on Nissan Maxima?
Yesterday morning the check engine light turned on in my 1997 Nissan Maxima, 127K miles, manual transmission. The mechanic pulled a speed sensor code but it's testing within range now. I was ...
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Intermittent stall at idle
I have a 98 Saturn sw2 with a recent problem. Two times now it has stalled while idling and when it doesn't stall it floats near 500 rpms (Usually 750 - 950). The first time, it would start and just ...
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Ambient temperature sensor reading -58 F degrees
I have a 2001 Audi S4. Last fall, I had maintenance performed on my car, and the shop accidentally, cracked my front fender. They told me about it and replaced it without any issue. However while ...
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how can I measure the amount of fuel injected into a diesel engine in real time in a purely mechanic pre-OBD vehicle?
This is a Mercedes-Benz 308D van, year 1992, model 602.316. Pre-OBD, no electronics of any sort, everything is purely mechanical.
I would like to retrofit a system which would measure the precise ...
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