Engine management help

[ididntdoit]

as some have you will have read before, I have an issue with my check engine warning coming on whenever I start the car, had it hooked up today for a diagnostic check and the error is originating from the air intake, it does have an aftermarket filter/induction kit fitted and the garage are sure this is triggering the error as there are no other faults.
Managed to reset it but after a wee while it came up again.

Any ideas anyone????????????

[Magic919]

What error code was it?

[neiljohnson]

If you have a oiled air filter that hat too much oil that could be causing fault if not probably the throttle body which is a common fault. Did they give you the fault code? If so can look it up for you and hopefully give you a better idea

[ididntdoit]

not sure what the code is, I am doing this remotely at the moment from the middle of the north sea!!!
don't want to give the breadknife to many things to juggle, at least she remembered to ask about the error when it was in to get serviced!!

[monkfish1]

As already suggested, without an actual code, you are not likely to move forward with this.

[Ciscas]

I had this 2 weeks ago and turned out the "pipe" from the air metering box to the manifold was loose, sucking "false" air.

[neiljohnson]

Ciscas said:

I had this 2 weeks ago and turned out the "pipe" from the air metering box to the manifold was loose, sucking "false" air.

ecu would see this as an air leak hence the light coming on. Would cause the engine to run lean which can be very bad.

[Ciscas]

yeah,- it was fuel compensating at maximum and it actually meant that I couldn't really feel a massive difference. Clever car

[neiljohnson]

Ciscas said:

yeah,- it was fuel compensating at maximum and it actually meant that I couldn't really feel a massive difference. Clever car

indeed but in comparison quite simple you should see some of the over complicated crap i have to deal with every day still new computer at the end of the month should help

[ididntdoit]

Hi,

The code is P0102 and states MAFF Volume Air Flow Signal Too Small (sporadic error)

any idea how to get rid

[Magic919]

Mafless tune would do it. :-))

[ididntdoit]

Magic919 said:

Mafless tune would do it. :-))

What's that?

[ringram]

Standard error code with a speed density based fueling system. Basically saying your maf has failed the tests.

[neiljohnson]

The maf (mass air flow) meter is the sensor that measures the density of the air thats going into the engine. You will find it on the pipe that goes from the air filter to the throttle body. Would be worth giving it a clean first as it may have oil on it from your induction kit which will mess with the readings. If this does not work then it may need a new one. Would be worth taking it to a garage to check the live readings first though as you dont want to replace it and find out its not the problem

[ringram]

Dont bother buying a new one. Totally pointless. Just get a mafless tune and be done with it if its dead.

[Boosted LS1]

Which engine is this and do you have a part number on the maf?

[MyM8V8]

Just make sure the maf plug is connected and tight and that it was all re assembled correctly. Did they put the maf back in?? What kit have you got? Pics please.

Either that or as Neil has said the new element could be over oiled and contaminated the maf sensor.

[Boosted LS1]

Don't maf's self clean by heating up red hot.

[monkfish1]

ididntdoit said:

Hi,

The code is P0102 and states MAFF Volume Air Flow Signal Too Small (sporadic error)

any idea how to get rid

Id suggest a defective MAF as a starting point.

[ididntdoit]

Hello all,

Thanks for getting back to me, can't look under the bonnet until i get back on dry land, but I know it has a "SS induction" "BIG MOUTH", from my reckoning that is just an aftermarket filter (correct me if I'm wrong) so I don't suppose that would be causing my problems.

It looks like it is probably the MAF thingy after all, but all other ideas welcome!!!

Thanks again