woodyb Posted October 23, 2005 Share Posted October 23, 2005 Hi All, Wondered if anybody can help, I've just bought an XT coupe 1986 with an engine fault, it starts reves up but only when driving it will only go up to 2500 rpm the turbo light flashe on and of. the ecs light is on on the dash and has a code 31 and 22 showing on the ecu, aparently the guy i bought it of said he bought it from a mate who took it to a garage to have it chiped and it didnt work right from then on, that was 9 year ago so its been stored in a garage since. hope somebody can help. warm regards mark:) Link to comment Share on other sites More sharing options...
Turbone Posted October 23, 2005 Share Posted October 23, 2005 I would try and find a stock ECU for it and see if that fixes the problem. Not to many early Soobs have had the ECU chipped from my knowledge. Link to comment Share on other sites More sharing options...
woodyb Posted October 23, 2005 Author Share Posted October 23, 2005 Hi, the car came with 3 other ecu's, all the same fault codes, thanks for your quick reply, regards mark Link to comment Share on other sites More sharing options...
Ever Victorious Posted October 23, 2005 Share Posted October 23, 2005 Hi, the car came with 3 other ecu's, all the same fault codes, thanks for your quick reply, regards mark Can you really guarantee that all of them haven't had the same thing tried on 'em? I'd say get one from a wrecking yard that you know to be stock. FYI - Code 31 is Throttle Sensor, and Code 22 is for the Knock Sensor. For what it's worth. Link to comment Share on other sites More sharing options...
calebz Posted October 23, 2005 Share Posted October 23, 2005 Personally, I would test and/or clean the sensors causing the codes... Bad/dirty throttle sensor could easily cause the driveability problems you are currently having. Link to comment Share on other sites More sharing options...
john in KY Posted October 23, 2005 Share Posted October 23, 2005 A TPS not functioning properly will create the problem you have. The TPS could be out of adjustment, the wiring harness could have corrosion, or the TPS could be junk. Link to comment Share on other sites More sharing options...
suberdave Posted October 23, 2005 Share Posted October 23, 2005 its not the TPS, its the idle stop switch, yeah its part of the TPS but if you unplug it it will work just find. had that problem on one of my turbo wagons. it has been unpluged for about 4 years now with no problem. the ilde stop switch dropes the idle down when it is less than 15%. the ecu is thinking that the throtle is closed. because the stop switch is shorted. but the rpms are running up. so it cuts fuel at 2500rpm. it is the connector that comes off of the TPS. three wires. black white and red. if it is the same thing i had, this will fix it. Link to comment Share on other sites More sharing options...
Turbone Posted October 23, 2005 Share Posted October 23, 2005 Dave, would this cause it to stall when you are coasting? Link to comment Share on other sites More sharing options...
woodyb Posted October 23, 2005 Author Share Posted October 23, 2005 its not the TPS, its the idle stop switch, yeah its part of the TPS but if you unplug it it will work just find. had that problem on one of my turbo wagons. it has been unpluged for about 4 years now with no problem. the ilde stop switch dropes the idle down when it is less than 15%. the ecu is thinking that the throtle is closed. because the stop switch is shorted. but the rpms are running up. so it cuts fuel at 2500rpm. it is the connector that comes off of the TPS. three wires. black white and red. if it is the same thing i had, this will fix it. Hi Guys Sorry for the lack of, but whats the TPS and where's the idle stop switch, the other problem re the 3 ecu's is that there are only 20 XT coupe's left in the UK, i have 2 but the other one is a 90 model and it has a different ecu. really appriciate all the time youl all have taken to respond. Many thanks Mark Link to comment Share on other sites More sharing options...
woodyb Posted October 23, 2005 Author Share Posted October 23, 2005 its not the TPS, its the idle stop switch, yeah its part of the TPS but if you unplug it it will work just find. had that problem on one of my turbo wagons. it has been unpluged for about 4 years now with no problem. the ilde stop switch dropes the idle down when it is less than 15%. the ecu is thinking that the throtle is closed. because the stop switch is shorted. but the rpms are running up. so it cuts fuel at 2500rpm. it is the connector that comes off of the TPS. three wires. black white and red. if it is the same thing i had, this will fix it. dave got any photos of the gl turbo regards mark Link to comment Share on other sites More sharing options...
idosubaru Posted October 24, 2005 Share Posted October 24, 2005 follow the air intake hose to where it bolts to the intake manifold...rubber/plastic tube bolts to the metal engine intake. here you'll find the throttle position sensor. Link to comment Share on other sites More sharing options...
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