Question about 1990 Buick LeSabre
The trouble codes read Camshaft Postion Sensor and TPS...Replaced both....Car will not idle....Tried to sdjust the TPS but vehicle will still not idle...both codes are still there.... it will start and run if I keep the accelerator pressed....I replaced the ECM earlier and tested PROM...
The TPS must be set with a voltage meter. What are the code numbers? Air flow meter will not let it idle too. Get a used one to save you money. Be sure you do not have the ecm number 1228253 in it also,they will make the car shut off while driving. I have one of the cars with 295,000 miles on it.
Posted on Jun 28, 2009
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Posted on Jan 02, 2017
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1) Maladjusted TPS
2) Defective TPS
3) No +5 volt reference to TPS
4) TPS-return to ECM is shorted to ground or to sensor ground
5) Defective ECM
Good luck, i hope this helps.
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