Question about Cars & Trucks
You can test your tps sensor with a multimeter - you'll need to unplug it and find your ground And signal wire first, then plug it back In and back probe these - flip the tb lever to open and close throttle and watch numbers. If you're not comfortable with doing that, have a shop check it before replacing. Throwing parts at a car is playing the lottery - hit or miss.
I'd lean elsewhere. Your idle air control valve sits on the tb housing - turn your car on and write down the rpms it sits at. Turn her off, go ahead and unplug the iac valve and turn her back on - write down the numbers. The rpms should go higher, if not than your iac is probably bad. Don't forget to plug it back in.
Your mass air flow sensor can cause an idle issue, as well; especially at stops. Vacuum leaks. A clogged or dirty egr valve. No codes? Is idle up and down or steady? Any recent changes? These details help.
Posted on Apr 19, 2017
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Posted on Jan 02, 2017
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