Please Help! P1120 P1221 reduced engine power
Thread Starter
2nd Gear
Joined: Sep 2019
Posts: 2
Likes: 0
From: Las Vegas NEVADA
Please Help! P1120 P1221 reduced engine power
Hello I need help. I have searched and cannot find a solid answer.
I bought a 2000 frc 6 speed with no engine. Had all wiring, pcm, tac, all there. Just missing engine.
Bought a complete drop out from a local wrecking yard. From a 2000 auto coupe.
Installed engine. Using the original engine harness and conputers
Car starts up. Cluster shows resuced engine power. And has codes of P1120 HC & P1221. CEL on. Traction control light and sais service active handling.
Did some reading. Replaced complete throttle body. No change. Replaced tac module. No change.
Pulled all grounds off frame. Wire wheeled them down. Reinstalled. No change. Same codes and displays on cluster.
What could it be?! Throttle pedal? Wiring?
Tps only has 4.5 volts at power wire. Could that have to do with it?
I bought a 2000 frc 6 speed with no engine. Had all wiring, pcm, tac, all there. Just missing engine.
Bought a complete drop out from a local wrecking yard. From a 2000 auto coupe.
Installed engine. Using the original engine harness and conputers
Car starts up. Cluster shows resuced engine power. And has codes of P1120 HC & P1221. CEL on. Traction control light and sais service active handling.
Did some reading. Replaced complete throttle body. No change. Replaced tac module. No change.
Pulled all grounds off frame. Wire wheeled them down. Reinstalled. No change. Same codes and displays on cluster.
What could it be?! Throttle pedal? Wiring?
Tps only has 4.5 volts at power wire. Could that have to do with it?
