rough idel
3 Answers
Not much to go on. Is your CEL (Check Engine Light) on?
The light was on ( blinking) but after the e.c.m was changed it went
A blinking CEL indicates a more serious problem than a steady on. It might have had some codes stored, but possibly lost when ECM was replaced. But the codes may have been thrown again, it wouldn't hurt to do an OBDII scan and see what pops up. Most large parts houses will do it free. Don't know what else to suggest