Disco Started. Idle Problems.

[JohnnyMax05]

Finally got Disco started, and new problem presents. The car is idling very rough, and also accelerates sporatically at lower speeds (between 10-30mph).

Error Codes:
P0123 (Throttle Position Sensor High Out of Range Fault)
p1447 (Evap System Purge Valve Open or Short Circuit Fault
)
TPS unit tested fine, maybe the wiring?

Any Idea's?

[JohnnyMax05]

Nothing?


Guess I'll replace the whole Unit.

[ihscouts]

What condition are the vacuum lines under the hood? I think you might have a vacuum leak.....

[JohnnyMax05]

The Vaccum Hoses were replaced a few months ago when the old ones pretty much rotted off.

[JohnnyMax05]

Also when i first tested the TPS it seemed to be working okay. I retested it a few days ago and it was completely fried. the truck will now stall out after about ten seconds if i keep the TPS connected, with it disconnected it runs, but the idle is sporatic and rough. I just ordered an entire throttle body, TPS, and IACV, and will replace all of these to see if it corrects the problem.

**A new unrelated problem: the fuel gauge is stuck on empty after filling car. I disconnected the fuel sender unit and it looks like the connector is corroded pretty badly, so ill replace the entire fuel pump wire harness sometime next week.**


Its been a week of ups and downs, fixing one problem only to have another present itself.