mustangsaleen

Have high idling problem around 1500 to 2000 rpm. I need help please.

Z28KLR

My only guess is check IAC valve operation. Engine running, unplug the electrical connector to it. If the engine stays running then there ya go.

If it turns out you need to replace it, the aftermarket auto parts store units have been known to be a bit hit and miss. Most people would therefore recommend a Motorcraft brand replacement (Ebay or dealer).

mustangsaleen

Thank I'll give it a try.

mustangsaleen

Okay I have a question. I have 42 lb injectors on my mustang. Do I need to upgrade my MAF to a better one or would my stock one be just fine.

I have a cobra maf in it right now. And I'm getting high idle and I've check almost everything. But when I unplug the maf it idle like it's suppose to do. And idea?

uberstang1

You need a MAF thats setup to match you fuel injectors size. If you simple just but bigger injectors in your car and do nothing else its not going to run correctly.