1998 ford escort SE, when I start the car, idle goes to 2grand then drops off to idle, when I drive the car, the idle crawls up 1100 rpms,


Asked by Nov 15, 2014 at 01:22 AM about the 1998 Ford Escort 4 Dr SE Sedan

Question type: Maintenance & Repair

ok, I had a cel, P1506, which was a throttle position sensor. changed it, its still doing the
same thing, before the CEL, I had changed IAC valve, Did I do something wrong by
changing these items, I can't see or hear any vacuum leaks, when the car idles the engine
runs very smoothly.

2 Answers


Put some throttle body cleaner and put some electrical cleaner in your sensors. And check your plugs. But it sounds like you didn't put the tps in right take it off and make sure it lines up with how the butterfly valve in the throttle body sits


Yep make sure your throttle body is clean, double check the install. Did you clear the computer and run a relearn cycle after the work was done?

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