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warm running low idle - '88 900S
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Posted by Evil Twin Skippy (more from Evil Twin Skippy) on Fri, 16 Apr 2004 07:49:42 Share Post by Email
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Hi folks,

'88 900S auto

Car starts and runs just fine - great, in fact. However, after warming up, and especially now that the weather is warmer, it will occasionally rough idle at about 500 RPM at a stop - or it will oscillate from 900-500 every few seconds. It rarely stalls, and it accelerates off the line OK, but it's annoying. I have replaced all the small diameter vacuum lines, and the other, larger ones look good. The AIC appears to be functioning fine and the AMM is only a couple years old.

O2 Sensor? I have no idea how old it is, but I've had the car 6 years and haven't renewed it (which means it'll be fun getting it out).

The trouble is, it's intermittent and never seems to happen in my driveway - though it does always seem to happen in the same places on my commute. But, I can't just hop out at a stoplight and throw the multi-meter on the O2 circuit :-) know what I mean?

TIA,

ETS
'88 900S - 187K
'89 9000S - 146K

posted by 208.42.143...

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