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Topic: Rolling(unstable) idle - SOS! (Read 426 times) |
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OHC
Junior Member
I love YaBB 1G - SP1!
Posts: 97
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Rolling(unstable) idle - SOS!
« on: Mar 13th, 2006, 7:57am » |
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Hello:
I have a problem with rolling idle plus low MPG on my 2.0 DOHC 16V, manual, ACC. The tacho needle falls then rises. Then I turn ignition of then on the symptom passes away and won’t reappear till the next engine start or even for a couple days.
Here is the list of the things I’ve done to try to sort it:
1. new battery
2. new MAF
3. new IACV
4. new IAT
5. new spark plugs
6. new fuel filter
7. injectors - cleaned
8. throttle housing thoroughly cleaned
9. EGR disabled
10. vacuum leaks – no (or well it seems)
11. ignition coils – changed for good ones – no avail!
12. Fuel cut-off loom – repaired with insulation tape, IACV plug - changed
13. HO2S wiring and plug- checked
Unfortunately, I have no access to OBD scanner at the moment
Can it be fuel pump relay? 
Any ideas, folks? Thanks in advance!
Best regards,
OHC
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martin_rowe
Full Member
I love YaBB 1G - SP1!
Posts: 879
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Re: Rolling(unstable) idle - SOS!
« Reply #1 on: Mar 17th, 2006, 8:39am » |
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VACUUM LEAK IS STILL BEST BET
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Rally Drivers Do It Sideways
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derekne
Full Member
PULL OVER
Posts: 282
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Re: Rolling(unstable) idle - SOS!
« Reply #2 on: Mar 17th, 2006, 8:39pm » |
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Are all of your air intake pipes secure? and has no small holes in them. Is your air filter uncloged from leaves ect. Normaly idle jump( hunting) is firstly checked for air leaks ect.
Hope this helps?
Derek.
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derekne
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OHC
Junior Member
I love YaBB 1G - SP1!
Posts: 97
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Re: Rolling(unstable) idle - SOS!
« Reply #3 on: Mar 20th, 2006, 6:54am » |
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Hello:
Thank you for advise! Three days ago I change the new IACV by the old one, having moved the ram a bit with a flat screwdriver. The simptom disappeared - perfect idle etc., but yesterday it reappeared, especialy when headlights, CC and wipers are on.
I feel it's IACV, or is it only a coincidence?
Best regards,
OHC
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Dave
Senior Member
Tourmallard 24v (ex-owner)
Posts: 1984
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Re: Rolling(unstable) idle - SOS!
« Reply #4 on: Mar 20th, 2006, 9:51am » |
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Maybe the IACV is sticking? Try moving the ram with the screwdriver again, see what happens.
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