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 Posted: Tue Mar 08, 2011 7:30 am |
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Joined: Jan 19, 2011
Posts: 32
Trade Rating: 0
Location: Hounslow
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Hi seeen this as I was doing some research for my own car. 1999 Gt1 138.
minimopar.knizefamily....nairadjust
My idle is currently around 600rpm and is really lumpy in the mornings.Its been happening for about a month now. I laso cleaned out the idle control valve, map sensor, throttle position sensor, throttle in general with brake cleaner, and had no change. Bought a new coil pack from Euro (Valeo), and peugeot plugs, and this seemed to have made the idle even more erratic. I may try changing my oil next as well.
Will be trying the Minimum Air Adjustment thingy this weekend.
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Posted: Tue Mar 08, 2011 7:48 am |
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Joined: Jul 03, 2010
Posts: 282
Trade Rating: +1
Location: Norfolk
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Hmm sounds interesting but also like the most complicated process ever  I dont know where hald the stuff mentioned is located for a start 
EDIT having looked at it it appears the AIS is the Idle control valve.
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Posted: Thu Mar 10, 2011 2:06 pm |
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Joined: Jul 03, 2010
Posts: 282
Trade Rating: +1
Location: Norfolk
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New air temp sensor fitted tonight. Engine was warm so can't tell if it has made any difference yet. Car seemed to be idling lower at just under 800rpm rather than just over but that could be weather conditions or my mind playing tricks. Don't really know if it would be effected by a sensor change anyway. I'll be able to tell tomoz morning hopefully from cold
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Posted: Mon Mar 28, 2011 11:30 am |
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Joined: Jul 03, 2010
Posts: 282
Trade Rating: +1
Location: Norfolk
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This is really getting to me now, I have changed everything that people have suggested, coil, sparks, map sensor, idle control valve etc, cost a bit of money for stuff that wasn't the cause but a least it ruled those parts out . The car has been fully serviced and valve lifter treatment added to no effect. It's been plugged into a diagnostic machine while running from cold and no faults are being read whatsoever despite misfiring and juddering worse than ever while plugged in.
Which is a problem, as it seems to be getting worse.
It's been given a clean bill of health mechanically and the only thing they mechanics can suggest is a faulty ECU not telling the injectors to pump enough fuel in when cold. To fix that we are talking mega money by the looks of things, just after i've had to fork out for a cam belt change it's just no possible. My yearly bonus can only go so far lol.
It seems to chug a bit at idle now when cold, but not cold enough for the juddering to start if that makes sense
Can anyone suggest something that I may have missed? I'm at my wits end...wherever that may be...
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Posted: Tue Mar 29, 2011 2:04 am |
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Joined: Jan 19, 2011
Posts: 32
Trade Rating: 0
Location: Hounslow
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oxygen/lamda sensor? - apparently they don't always show fault codes but doesnt mean they on their way out. Phew, that would be almost every sensor changed.
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Posted: Tue Mar 29, 2011 3:37 am |
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Joined: Feb 08, 2010
Posts: 2194
Trade Rating: +2
Location: Bristol & Leicester
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Injectors?
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Posted: Tue Mar 29, 2011 5:24 am |
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Joined: Jul 03, 2010
Posts: 282
Trade Rating: +1
Location: Norfolk
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No, injectors are fine so to was the O2 sensor but that would be harder to 100% test.
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