idle dropping /going lean at idle
#1
idle dropping /going lean at idle
Hi guys,
93 plate 4x4 idles shite,
Revs drop and come back up again, afr going lean to normal,
Did check from ecu and all seemed in tolerance,
Tps and iscv disconnected idles fine but so does unplug lambda,
Cts relatively new, lambda also,
Tps 0.15v at idle,
Fuel pump 13 odd volts,
Base idle 950 rpm,
That's months it's been shite any ideas?
Last effort to get it right, totally sick of it and now my pishy bayjoo springs are broken, Ffs!
CheeRs Colin
93 plate 4x4 idles shite,
Revs drop and come back up again, afr going lean to normal,
Did check from ecu and all seemed in tolerance,
Tps and iscv disconnected idles fine but so does unplug lambda,
Cts relatively new, lambda also,
Tps 0.15v at idle,
Fuel pump 13 odd volts,
Base idle 950 rpm,
That's months it's been shite any ideas?
Last effort to get it right, totally sick of it and now my pishy bayjoo springs are broken, Ffs!
CheeRs Colin
Last edited by col93saphcos; 01-01-2015 at 11:12 AM. Reason: add info
#2
SIERRA RS 4X4 COSWORTH
base co been set at 950 rpm .. ?
I always clean the idle screw (counting the turns)- remove- clean -refit and use mate co testing maching ..
I always clean the idle screw (counting the turns)- remove- clean -refit and use mate co testing maching ..
#4
Thanks James,
Think maybe got it this time,
Lambda sensor I think, swapped it with narrow band output from afr thing, and seemed fine,
If snows will go for test drive, if not will try it out tomorrow,
Will the narrow band output be ok or best to renew lambda sensor it's the standard one fitted in turbo exhaust housing,
CheeRs Colin
Think maybe got it this time,
Lambda sensor I think, swapped it with narrow band output from afr thing, and seemed fine,
If snows will go for test drive, if not will try it out tomorrow,
Will the narrow band output be ok or best to renew lambda sensor it's the standard one fitted in turbo exhaust housing,
CheeRs Colin
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