Mazda Protege This compact model offers an economical solution for the need for a sporty sedan or wagon.

97 protégé rough idle when a stopped in gear

Old 01-21-2017, 10:43 PM
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Join Date: Jan 2017
Location: PA
Posts: 4
Default 97 protégé rough idle when a stopped in gear

I have scoured over countless threads all over the net before starting this one and have not seen anyone post the results of cleaning grounds.

I did clean the firewall and transmission mount and added a ground from the frame on both side of the engine to valve cover.

While it did help a bit (doesn't shake like crazy anymore) I feel like there's still a problem somewhere.

Maybe a failing coil or something? Just got this car and wires look like recently changed. Starts up great. I see this ground running from the passenger side hoist point up into the fender.... Looking for some insight.

Thanks in advance.
Old 10-11-2017, 08:40 AM
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Join Date: Oct 2017
Location: Jerusalem
Posts: 4

Could be a failing IAC, among other things:
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