My98 Revs rise slightly on gear change & fall more slowly ??
The above has only just started along with slight pulsing in power delivery off boost.
The Revs increase slightly above 3.5k 4K ETc on Gear Change & then fall more slowly Throttle cable is not to tight (checked) Lambda has been swapped & it still does it. Idle control valve has been cleaned & made no difference. If the Idle control valve is unplugged it runs on 2 cylinders & hunts Etc, Plug back in & it stabilises. Sometimes after a run (constant Speed, Motorway ETc) when stopped the idle would hunt for a while before stabilizing again :confused: SO today, Unplugged Maf started car & it seemed to run fine, Drove off boost. Revs fell normally & no hunting ETc. Ahh right MAf i thought, Plugged back in & the revs appeared to hang about & drop more slowly again. Tried with maf unplugged again & it then started hunting slightly :confused: DO i have an intermittent MAf fault ?? Are the Rev issues a sign of this ?? Ideas ? Thanks Dean |
Update.
It would appear that when the car is warm & the Maf unplugged it runs fine, pulls Ok & idles !!!
Trouble is you can repeat this, I.e unplug the Maf again & it then runs crap, Idle all over the place, Missing. So what can be drawn from this :confused: ?? Cheers Dean |
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