I replaced the tps. Cleared the warning light. Every thing was great during test drive: until I turned on the a/c.
Check eng light came back on and engine started performing eratic. Turned off a/c engine smoothed out but light stayed on.
Sorry its a 1998 dodge Ram. Disconnected bat.ground.
Computer reader says high voltage tps.
Yes I know it is supose to raise rpm. But not cause eratic rpm and staling when you rev the engine.
Code and problem only happens after turning on the a/c. If you turn off ac the light stays on but engine runs fine. Its hot here and would really like to use the a/c.
If both the A/C compressor and TPS are trying to squeeze through a bad engine-to-battery or to-body ground together, it may do just what you describe. The TPS signal voltage may be high because a bad ground is preventing it from a proper voltage drop. Check and clean connections first.
1 - 5 of 5 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.