88-cnqst-tsi Posted November 17, 2012 Report Share Posted November 17, 2012 this happens sometimes only i will be at a red light and it drops to like 500 but today the tack showed like 100 and almost stalled but when ever this happens i just touch the gas a bit the keep it at 1000 and when i start moving everythings ok, i have removed my AC and cruse besides that everything is stock. Whats going on I was thinking the tps is done for but i want to make sure before i empty my pockets on a tps Link to comment Share on other sites More sharing options...
GLHS Posted November 18, 2012 Report Share Posted November 18, 2012 Check voltage to the tps,their is a write up some wear just search gl. Link to comment Share on other sites More sharing options...
scott87star Posted November 18, 2012 Report Share Posted November 18, 2012 TPS is only used for accel enrichment, its not that. Probably need to give the ISC some loving care. Link to comment Share on other sites More sharing options...
TexasQuest Posted November 18, 2012 Report Share Posted November 18, 2012 Check for vacuum leaks? Link to comment Share on other sites More sharing options...
88-cnqst-tsi Posted November 18, 2012 Author Report Share Posted November 18, 2012 (edited) TPS is only used for accel enrichment, its not that. Probably need to give the ISC some loving care.whats an ISC, whats its function Check for vacuum leaks?in the middle of doing a full replacement but iv only done the hvac nipple cause im not sure if i should do i egr delete and it would be dumb to waste a bunch of vac line. ps. would you happen to know if the vacc pump located next to drivers headlight and over flow just part of the cruse contol or do i need it for other things Edited November 18, 2012 by 88-cnqst-tsi Link to comment Share on other sites More sharing options...
TexasQuest Posted November 19, 2012 Report Share Posted November 19, 2012 Yes it is for your cruise control but I'm not positive if it's for other things. I would keep your egr personally at least until you figure all the bugs out.The ISC is the Idle Servo Control. Link to comment Share on other sites More sharing options...
88-cnqst-tsi Posted November 19, 2012 Author Report Share Posted November 19, 2012 Yes it is for your cruise control but I'm not positive if it's for other things. I would keep your egr personally at least until you figure all the bugs out.The ISC is the Idle Servo Control.ok so shall i remove the vac pump and i have to keep the egr till 2014 so i might as well use the line for 2 years and what do i do with the isc Link to comment Share on other sites More sharing options...
88-cnqst-tsi Posted November 19, 2012 Author Report Share Posted November 19, 2012 TPS is only used for accel enrichment, its not that. Probably need to give the ISC some loving care.define loving care to the isc Link to comment Share on other sites More sharing options...
TexasQuest Posted November 19, 2012 Report Share Posted November 19, 2012 I would leave the vacuum pump in there until you find out what else it's related to. ISC mtors go haywire sometimes after 20 + years, they need to be cleaned out and serviced. There is a how to thread somewhere I believe on what all to check ot and grease. Link to comment Share on other sites More sharing options...
88-cnqst-tsi Posted November 19, 2012 Author Report Share Posted November 19, 2012 I would leave the vacuum pump in there until you find out what else it's related to. ISC mtors go haywire sometimes after 20 + years, they need to be cleaned out and serviced. There is a how to thread somewhere I believe on what all to check ot and grease.ok ill leave it then and would you happen to have a link to the thread Link to comment Share on other sites More sharing options...
TexasQuest Posted November 20, 2012 Report Share Posted November 20, 2012 http://www.starquestclub.com/forum/index.php?showtopic=95170&st=0&p=928423&fromsearch=1&&do=findComment&comment=928423 Link to comment Share on other sites More sharing options...
88-cnqst-tsi Posted November 20, 2012 Author Report Share Posted November 20, 2012 ok thanks and today it actally stalled so this is really pissing me off Link to comment Share on other sites More sharing options...
TexasQuest Posted November 20, 2012 Report Share Posted November 20, 2012 Your welcome. Hang in there buddy, you'll figure it out. Link to comment Share on other sites More sharing options...
88-cnqst-tsi Posted November 20, 2012 Author Report Share Posted November 20, 2012 thanks and 2 more things it only stalled once but it would go down to about 300 then shake like crazy then pop up to 1000rpm its almost like what ever senser or solinoid that keeps the idle from stalling is not reactiong fast enough and i blew my dimmer so would you happen to know how or know a person who might know how to jump the connector for the dimmer so i can get full on light Link to comment Share on other sites More sharing options...
TexasQuest Posted November 20, 2012 Report Share Posted November 20, 2012 Check your coolant tempurature sensor (CTS). Link to comment Share on other sites More sharing options...
TexasQuest Posted November 20, 2012 Report Share Posted November 20, 2012 As for the dimmer why not just replace it with a good one? Link to comment Share on other sites More sharing options...
88-cnqst-tsi Posted November 21, 2012 Author Report Share Posted November 21, 2012 (edited) As for the dimmer why not just replace it with a good one?i need my money for my stering and gas so ill just jump it till i get more money and does it say how to check it in the book? Edited November 21, 2012 by 88-cnqst-tsi Link to comment Share on other sites More sharing options...
quest4me2 Posted November 21, 2012 Report Share Posted November 21, 2012 crankshaft endplay caused my similar problem....caught just in time to save the block....required another crankshaft.....thrust area on crank chewed up..... eric Link to comment Share on other sites More sharing options...
88-cnqst-tsi Posted November 21, 2012 Author Report Share Posted November 21, 2012 crankshaft endplay caused my similar problem....caught just in time to save the block....required another crankshaft.....thrust area on crank chewed up..... ericoh s*** are all systoms of endplay so i might be able to rule it out Link to comment Share on other sites More sharing options...
TexasQuest Posted November 21, 2012 Report Share Posted November 21, 2012 does it say how to check it in the book?Yes it does in the FSM. Link to comment Share on other sites More sharing options...
88-cnqst-tsi Posted November 21, 2012 Author Report Share Posted November 21, 2012 Yes it does in the FSM.ok great ill clean every electrial conection in the bay this weekend anyways Link to comment Share on other sites More sharing options...
quest4me2 Posted November 21, 2012 Report Share Posted November 21, 2012 by the way 88, my car only stalled when braking for red lights and such, not standing still......if i read correctly, yours dropped while sitting still?....hopefully a different issue... eric Link to comment Share on other sites More sharing options...
88-cnqst-tsi Posted November 21, 2012 Author Report Share Posted November 21, 2012 by the way 88, my car only stalled when braking for red lights and such, not standing still......if i read correctly, yours dropped while sitting still?....hopefully a different issue... ericyes it does only stall at a stand still and with end play wouldnt there be a shaking all the time? and btw when you copy and past to this site the font size gets really small so you can make it bigger with the edit bar at the top Link to comment Share on other sites More sharing options...
Caliber308 Posted November 24, 2012 Report Share Posted November 24, 2012 (edited) TPS= Throttle Positioning Sensor.ISC= Idle Speed Control. Do a ISC/TPS reset. And don't skip and of the procedures Bill Edited November 24, 2012 by Caliber308 Link to comment Share on other sites More sharing options...
88-cnqst-tsi Posted November 25, 2012 Author Report Share Posted November 25, 2012 TPS= Throttle Positioning Sensor.ISC= Idle Speed Control. Do a ISC/TPS reset. And don't skip and of the procedures Billis the reset procedure instructions in the fsm or is there a thread to it Link to comment Share on other sites More sharing options...
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