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15 votes
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Sharp cornering is turning my Service light on for a second

It could be that you are cornering so hard that you're pushing the oil in the sump to one side, away from the pickup pipe. This temporarily means you're oil pump is sucking up air and you are ...
Steve Matthews's user avatar
10 votes

why the check engine light on 75 mph speed?

A P2757 DTC is a torque converter clutch solenoid valve issue The valve engages a torque converter at higher speeds to lock your transmission and engine at a 1:1 ratio. This engagement, obviously, ...
DucatiKiller's user avatar
  • 32.9k
7 votes
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Meaning of dashboard "Check Engine Light" on motorbike

That's the check engine light, or CEL - if it lights up, you have a problem with the engine and should stop and investigate it. If it's blinking, count the number of flashes, as this will indicate a ...
Nick C's user avatar
  • 28.7k
7 votes

My BMW 325xi smells like gas

The fact that you can smell fuel in the exhaust is a strong indication that the engine is running rich. This means that there is more fuel than required by the engine. There are many things which ...
Zaid's user avatar
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6 votes
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Why does the check engine light have a pulley on top?

Maybe its a stylised 1950's era air-filter pancake on a carburettor throat? source Icons tend to be retained long after the thing they were based on has changed substantially
RedGrittyBrick's user avatar
5 votes

2001 Ford Explorer High Idle

The P1506 code is an idle air control overspeed error. From autocodes.com: The P1506 code means that the engine idle is out of factory specification. Sometimes the Idle Air Control (IAC) may have ...
anonymous2's user avatar
  • 5,225
5 votes

Is the vehicle code gone or does a mechanic have to clear it?

If you're worried about the car passing emissions testing, seeing the check engine light go off is a good sign. Where I live, you can't be failed because the light used to be on. The status of the ...
Bob Cross's user avatar
  • 24.4k
4 votes

No Acceleration, loss of power, backfiring, CEL, stalling

There are scanners that will talk to OBD1 computers, but most shops (I would guess) don't have the equipment anymore. I got rid of my OBD1 equipment last year. I've seen ≤ 2 cars that required me to ...
Ben's user avatar
  • 10.7k
4 votes

What CAN'T the check engine light tell you?

The check engine light comes on for issues that the ECU can detect from its many sensors. The ECU controls fuel and spark. This means the ECU will not come on for mechanical issues that cannot be ...
rpmerf's user avatar
  • 8,403
4 votes

Can mixing octanes cause the check engine light to come on?

Using a higher octane fuel should not have caused the SES light to turn on. The only fill-up-related thing I can think of which would cause the SES to turn on is if there is a bad batch of fuel (...
Zaid's user avatar
  • 39.1k
4 votes
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Hyundai Tucson dash lights

The engine oil stayed on because it indicates low oil pressure, theres no oil pressure until the engine is running. The battery light stayed on because it indicates the alternator isn't charging. It ...
Newbie Noob's user avatar
  • 2,781
4 votes
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P2646 after Head Gasket Replacement....WRONG or NO OIL?

A straight answer to Did they use the wrong oil causing this to happen??? No. The wrong oil wouldn't, at leas not 10W30 instead of 5W20 would make no noticeable difference in 30 minutes. Maybe ...
kyle_engineer's user avatar
4 votes
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Mysterious Check Engine Light but no codes

The CEL can be triggered for a number of reasons, depending on what the manufacturer wanted. Only some of those reasons are emissions-related. Everything in the OBDII code list is, in some way, ...
3Dave's user avatar
  • 3,149
3 votes
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Does P0420 on a Vibe result from a pre- or a post- O2 sensor?

Dealing with mechanics If you're going to take it to a mechanic anyway, you are probably better off letting that same mechanic do the diagnosis and obtaining the correct part(s). Bringing parts and a ...
Edward's user avatar
  • 2,857
3 votes
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1996 Toyota Avalon How to remove a dashboard?

There should be a few screws holding the black trim in marked J in the diagram as well as two screws in the upper portion of the trim. Remove the trim and any connectors. There will be four screws ...
Ben's user avatar
  • 10.7k
3 votes

How to fix P1167 in a 2001 Honda Accord, with a F23A4 engine

This is assuming you don't have access to a scantool that can communicate with a Honda ECM and without bidirectional controls. Key On Engine Running (this may work Key On Engine off) disconnect the ...
Ben's user avatar
  • 10.7k
3 votes
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Does a full fuel tank speed up the CEL turning off after changing the fuel cap?

There is know way to know how the software was programmed for any given car, from that I know most systems will not do a fuel tank integrity vacuum check when the tank is either past 3/4 or below 1/4, ...
Moab's user avatar
  • 7,990
3 votes

My BMW 325xi smells like gas

Sounds like a possible evaporative system issue involving the purge valves that vent fuel vapor from the gas tank. If the OBDII -on board diagnostic code that triggers the check engine light is P0440 ...
Old_Fossil's user avatar
  • 3,962
3 votes
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What computer does a Toyota Corolla use?

The controller is called the Powertrain Control Module (PCM). On this model it will be located near the glove box. It is made by Denso Corp. These units and the software that control the system are ...
Fred Wilson's user avatar
  • 11.6k
3 votes

2001 Ford Explorer High Idle

This condition can be caused by a vacuum leak. Use an automotive safe spray such as carb cleaner to try to find the leak, both visually, and by noting changes in the idle speed depending where you ...
kmarsh's user avatar
  • 2,159
3 votes
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What should a mechanic charge for a breather valve replacement?

I looked around a little, and it looks like you have 2 options. The shop is probably quoting you the cost of replacing the entire valve cover which does have a built in vent: Valve cover on Amazon ...
JPhi1618's user avatar
  • 13.2k
3 votes
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Astra dashboard warning engine light on. Can I check fuses randomly?

From a bit of googling there's a forum page which has many of the error codes listed: ECN 13500 = O2 sensor 1 heater malfunction ECN 14100 = o2 sensor 2 heater mulfunction ECN 40062 = EGR valve ECN ...
GdD's user avatar
  • 16.9k
3 votes

2012 Mini Roadster S R59 P15DF code

The OBD code you are getting is: Code P15DF : Fuel high-pressure system, cold start: pressure too low On the Mini I think there's 2 fuel pumps, an electric one in the tank and a mechanical one ...
GdD's user avatar
  • 16.9k
3 votes
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Tacoma inducing monitors after resetting ECU

Q1: Is there any way for me to induce the reading on these monitors without being at the mercy of an undetermined number of miles before they are available? Basically, no. Every OBDII compliant ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
3 votes
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Can a disconnected srs system ground cause a check engine light?

No, disconecting the srs/airbag module (or its ground) will not turn on the check engine light. It will only turn on the airbag light and disable the airbag system.
narkeleptk's user avatar
  • 3,780
3 votes

Will a cylinder misfire immediately fire the check engine light?

A misfire is detected primarily by the crankshaft sensor. It will actually detect a speed variation caused by a weak contribution from the weak cylinder. The computer knows which cylinder is misfiring ...
Jupiter's user avatar
  • 3,222
3 votes
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2001 Opel Astra 2.0 diesel - service light comes on on idle, goes out when driving

I found the issue. A small vacuum hose that goes from the vacuum pump to the turbine (waste gate, I assume) was disconnected during the emissions test and just left hanging. It's in a difficult-to-see ...
user28520's user avatar
3 votes
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Reset CEL after suspected repair or not?

It has always been my practice to clear codes after a fix has occurred. Don't wait for the ECU to turn out the light on its own. In most cases, the ECU can turn out the light, however it may take a ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
2 votes

2000 Honda Accord O2 Heater error

As @FredWilson pointed out, there is no relearn for a heater circuit code. On a 2.3 Check for power at the ECM connector C pin 13 (white). On a 3.0 Check for power at the ECM connector C pin 1 (...
Ben's user avatar
  • 10.7k
2 votes

Does P0420 on a Vibe result from a pre- or a post- O2 sensor?

Four things can throw this P0420 code, Bad catalytic converter bad upstream O2, bad downstream O2, fuel ratio problem, rich or lean, which can be even more complicated to sort out as suggested in ...
Moab's user avatar
  • 7,990

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