How to troubleshoot for a code 26 on a 1992 buick skylark have replaced tps sensor .
SOURCE: 1997 buick lasabre custom high idle, transmission, stalling
had same problem i would check the Idel Air Valve and also check all of your vaccum hose lines makeing sure there are no cracks or splits in rubber connectors if there is repair immediatelt because over time they start to dammage the internal parts fo the engine and if youve replace tps mass air etc. sounds like a vaccum hose problem
SOURCE: low voltage tps senser.
Not likely getting a bad TPS.Your TPS runs off a 5volt reference wire.Using multimeter with key on engine off Check to make sure you have your 5volt reference check for any deformed terminals or broken wires inside insulation.
SOURCE: Replaced IAC valve on a 1999 buick lesabre, car is
a defective TPS will affect shifting replace that 1st
SOURCE: 94 buick lesabre 3800 engine, stalls after 10 mile
next time it won't run after it heats up, spray or pour water in crank sensor and see if it will start. I have seen new crank sensors go bad.
SOURCE: I have a 94 Buick park ave. I replaced icm, ecm,
Have you tried testing the ignition coil pack(s)? If this goes out then there wouldnt be any spark delivered to the plugs, this part is relatively cheap and is a common problem causing no spark.
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