Questions about a possible backfire.
Hey guys, i got to get back out in my 2000 gt and the first thing i noticed was once i shifted into second driving away, i hold my shifts until 3000-3500rpms just because the owner does not let the car be who he is, and a loud pop coming from the engine compartment surprises me. The car has always crackled in the exhaust but never like this, although it did go away after i reprogrammed the pcm back to factory settings until i put in the IAC restrictor into the car. This is the first time i have stumbled apon this issue and i recorded what it does somewhat but it is not a good description of how bad it it. Honestly i hate letting the engine decel by itself just because of the noise. It is not a major deal for me its just a nuisance to me driving around. The CEL is on because of the lack of CATs. Thanks for any information in advance.
19 GT PP1
65 GT A-Code Mustang 289
66 GT A-Code Mustang 289