philthy89fifty

what could cause this ? i also recently put in 24# injectors and adj fpr.

Tims 88GT

well it started after the msd install not after the injectors right?

90Mustangfan

its probally the msd unit...people have problems w/ msd sometimes....I would try and put the stocker back on and if it goes away, then you know that its the msd...if not then its something else...normally inj wont cause a miss neither will the fpr...so I dont know, just back track and double check every, in fact triple check....then check again after that....lots of time youll miss 1 small step and it will ruin everything, lol just quadroople check everything. I rember how long it took chasing codes, then chasing a vacum leak, they **** me off how many time i have check and though it did a good job then to find out that the whole time a rat chewd a hole in a vac line that I couldnt see inside the fender where the vaccum storge this is...