TMeitz Posted May 26, 2015 Report Share Posted May 26, 2015 For last two month my 87 conquest TSI has been cutting off and on if I'm cruising between 1800 to 2800 rpm. Like I'm shutting the key off and on, sometime it won't come on till RPM GETS TO 1800 rpm to and then all is good. Does not happen till car warms up.If I'm accelerate through that range there are no issues. I have swap out mass air sensor, computer, knock box, new distributor W/vac adv., inject clips run fuel pressure check when it quit, stayed at 38 lbs. I at wits end! Any suggestion on what I may be overlooking? Link to comment Share on other sites More sharing options...
Josh '88 Posted May 27, 2015 Report Share Posted May 27, 2015 Try unplugging your ISC/MPS sensors and driving it. My red '88 had the same revving problem when I bought it, it was the ISC. If this is Tom Meitz, I recall meeting you at PF '04. Good to see you still around. Link to comment Share on other sites More sharing options...
TMeitz Posted May 27, 2015 Author Report Share Posted May 27, 2015 Yes I'm still around! Hope everything is going well with you. My problem is the whole system shuts down from 1 sec to 10 seconds as though I'm turning the key off and on, and I have replace all of the main components. I check my TPS WITH ohm meter and it did not change resistance. I'm trying to locate one in aftermarket and no one shows a listing! Ugh! Link to comment Share on other sites More sharing options...
StarquestRescue Posted May 27, 2015 Report Share Posted May 27, 2015 Disconnect both plugs to the isc. Idle speed controller. The problem should go away. Then you your right foot as needed on cold starts. Link to comment Share on other sites More sharing options...
TMeitz Posted May 27, 2015 Author Report Share Posted May 27, 2015 Thanks Josh and starquestrescue I will try that and let you know........ Link to comment Share on other sites More sharing options...
TMeitz Posted May 31, 2015 Author Report Share Posted May 31, 2015 Well Josh 88 and Starquest rescue! You did it! My problem is solve once and for all. I would have never guess that to be the problem EVER. Thanks again.........TMeitz Link to comment Share on other sites More sharing options...
ZPI28 Posted May 31, 2015 Report Share Posted May 31, 2015 Hey Tom good to see you around. Its been along time since we have spoke. I just recently got back into starquest after a 8 year hiatus. Link to comment Share on other sites More sharing options...
TMeitz Posted June 1, 2015 Author Report Share Posted June 1, 2015 Same here! Car ran so good for so long just went about my business! It's been about 9 years. Wife passed away in 05 and lost all interest. But life is good and I continue on....... Link to comment Share on other sites More sharing options...
Tim_C. Posted June 18, 2015 Report Share Posted June 18, 2015 Did you used to live in Denver or Castle Rock? I seem to remember? Link to comment Share on other sites More sharing options...
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