Pcm Code E070, Intermittent TPS Signal: Action

No code set. No service message is given.

1. PCM Code E070 is not present at this time unless PCM Code E021, E022, E031, E032 or E034 is current. This code indicates an unacceptable high rate of TPS change.
2. As ISC extends, TPS voltage (as measured at TPS jumper) should increase at a steady rate. A dead spot in TPS will cause voltage to jump erratically as ISC moves TPS past dead spot. Use a high impedance needle-type voltmeter for this test.
3. If throttle blade cannot return to idle stop, throttle valves may be coked or binding. These conditions may set PCM Codes E055 and E058.
4. Improper TPS adjustment, such as forcing or tapping on TPS without loosening attaching screws, will damage TPS and can cause PCM Code E070 to set.