"88" Beretta?

Question

When car gets to operating temp, you can hear it miss. Changed plugs and wires still does it.Now here's the problem unplugged the IAC valve,MAF sensor,and the TPS and car still runs the same. What's wrong with this picture?

Answer 1

check your fuel system. filters & if fuel injected flush the system or get a good feul injector cleaner & put it in your tannk & this will help or fix the problem. if a carbetor you might wont ot take it mechanic to get it checked out.

Answer 2

SOUNDS LIKE A BAD ECM (ENGINE CONTROL MODULE) YOU NEED TO HAVE A SHOP READ THE ENGINE CODES BEFORE BUYING THIS EXPENSIVE PART