Ok guys still having this issue with the backfire. I want to treat it like its not the tune first (although it might be) so i can get a better understanding of possible causes and go from there.
The Issue: When in neutral and i blip the throttle hard to wot i get a Loud pop noise seeming to come from the intake more then under the car. When the car is driving and i get on it at low RPM's it Bogs then backfires and it takes off like a bat out of hell.
Important Modifications:
306 flat top pistons
TFS hi Ports
Accufab 1 3/4'' Long tubes
Wolverine 1190 camshaft
24lb Injectors
24lb Pro M bullet maf
Quarterhorse, binary editor, EECA
What ive done so far.
Few months back:
Wires and plugs are new (wires have been shortened)
Checked plugs all good
checked compression 160-164 Across the board.
Yesterday:
Changed fuel injectors (i had one miss matched Read about it here: http://www.stangnet.com/mustang-for...solved-injector-related-pretty-cool-diag.html)
New Cap and rotor (found burnt terminal)
Other info:
Car runs great and sounds healthy other wise. However after a backfire last night it started to stumble. I think its because i had no gas in it. I put in 2 gallons and noticed a change. Im still going to compression test it this weekend to make sure its not hurt.
Car reads lean on the wide band but i failed emissions for high HC's. The wideband readings were unstable but since changing the injectors have gotten better.
I added 10% to my maf transfer to fatten it up and the problem persisted.
Goal: Formulate a plan of attack for this weekend when i go home to work on it.
The Issue: When in neutral and i blip the throttle hard to wot i get a Loud pop noise seeming to come from the intake more then under the car. When the car is driving and i get on it at low RPM's it Bogs then backfires and it takes off like a bat out of hell.
Important Modifications:
306 flat top pistons
TFS hi Ports
Accufab 1 3/4'' Long tubes
Wolverine 1190 camshaft
24lb Injectors
24lb Pro M bullet maf
Quarterhorse, binary editor, EECA
What ive done so far.
Few months back:
Wires and plugs are new (wires have been shortened)
Checked plugs all good
checked compression 160-164 Across the board.
Yesterday:
Changed fuel injectors (i had one miss matched Read about it here: http://www.stangnet.com/mustang-for...solved-injector-related-pretty-cool-diag.html)
New Cap and rotor (found burnt terminal)
Other info:
Car runs great and sounds healthy other wise. However after a backfire last night it started to stumble. I think its because i had no gas in it. I put in 2 gallons and noticed a change. Im still going to compression test it this weekend to make sure its not hurt.
Car reads lean on the wide band but i failed emissions for high HC's. The wideband readings were unstable but since changing the injectors have gotten better.
I added 10% to my maf transfer to fatten it up and the problem persisted.
Goal: Formulate a plan of attack for this weekend when i go home to work on it.
