ERRATIC IDLE HELP I'M LOST
#1
ERRATIC IDLE HELP I'M LOST
Hi guys, not been on here for a while but i'm back now as I've Just bought impreza number 2. I'm having problems getting it to idle it'S a 99 turbo with full serv history from subaru. I've fitted new plugs and cleaned out the idle air control valve but the idle still rises and falls. The engine managment light hasn't been on and she drives fine appart from the poor idle. Any ideas???
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#9
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Failing MAF. About £80 for the actual sensor from Subaru.
If it's failing, the check engine light won't come on......
Only know this through my own experiences. (many thanks to Tony at the time for helping out!! )
Dan
If it's failing, the check engine light won't come on......
Only know this through my own experiences. (many thanks to Tony at the time for helping out!! )
Dan
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Most likely the MAF .... get it changed!!
These should be included in the service schedule on MY99/00 cars .... can fail at any time, and the consequences can be anything from poor idling to blown engine!!
£75 from Extreme Scoobies for an original part and 10mins to fit!
These should be included in the service schedule on MY99/00 cars .... can fail at any time, and the consequences can be anything from poor idling to blown engine!!
£75 from Extreme Scoobies for an original part and 10mins to fit!
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Originally Posted by RB5 69
Most likely the MAF .... get it changed!!
These should be included in the service schedule on MY99/00 cars .... can fail at any time, and the consequences can be anything from poor idling to blown engine!!
£75 from Extreme Scoobies for an original part and 10mins to fit!
These should be included in the service schedule on MY99/00 cars .... can fail at any time, and the consequences can be anything from poor idling to blown engine!!
£75 from Extreme Scoobies for an original part and 10mins to fit!
Ns04
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If the problem is only at idle and off-boost it is most likely a lambda/02 sensor that is buggered. yOU WILL need to buy a new one. The lambda sensor will only make a difference off boost.
Otherwise it could be the MAF sensor.
Otherwise it could be the MAF sensor.
Last edited by rasonline; 13 September 2006 at 01:06 PM.
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Its quoted at the top though that its idle only .... car drives fine otherwise .... would that not make it the MAF??
I thought, when driving, the MAF affects WOT and the lambda partial throttle .... but the idle would most likely be affected by the MAF??
Either way though, I would change the MAF anyway, particularly if it has never (or recently) been changed .... £75 isnt a lot for a bit of peace of mind!!
I thought, when driving, the MAF affects WOT and the lambda partial throttle .... but the idle would most likely be affected by the MAF??
Either way though, I would change the MAF anyway, particularly if it has never (or recently) been changed .... £75 isnt a lot for a bit of peace of mind!!
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Originally Posted by RB5 69
Its quoted at the top though that its idle only .... car drives fine otherwise .... would that not make it the MAF??
I thought, when driving, the MAF affects WOT and the lambda partial throttle .... but the idle would most likely be affected by the MAF??
Either way though, I would change the MAF anyway, particularly if it has never (or recently) been changed .... £75 isnt a lot for a bit of peace of mind!!
I thought, when driving, the MAF affects WOT and the lambda partial throttle .... but the idle would most likely be affected by the MAF??
Either way though, I would change the MAF anyway, particularly if it has never (or recently) been changed .... £75 isnt a lot for a bit of peace of mind!!
Ns04
#16
Thanx guys managed to order a maf sensor this afternoon. Spoke to the guy from subaru and they were really helpfull so its coming tomorrow and will keep you posted
Cheers again
Cheers again
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if your fitting it yourself you will need a security torx screwdriver, cant remember the size off the top of my head, possibly T-10
Mine did this for a while, and was the MAF, the easiest way to check if its the MAF is with the engine running, unplug the MAF, if it continues with erratic idle it is the MAF, if the engine cuts out then the MAF is ok
Lambda is usually loss in power as well, at least mine was, but gradual over a period of a few months, Lambdas afaik should be changed every 3 years, as they have a finite life, again from what I can remember
(this is *Sonic* btw lol)
Mine did this for a while, and was the MAF, the easiest way to check if its the MAF is with the engine running, unplug the MAF, if it continues with erratic idle it is the MAF, if the engine cuts out then the MAF is ok
Lambda is usually loss in power as well, at least mine was, but gradual over a period of a few months, Lambdas afaik should be changed every 3 years, as they have a finite life, again from what I can remember
(this is *Sonic* btw lol)
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