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View Full Version : Back fire during take off!! Why


Bobbys14
14-12-09, 19:28
Its a sr20det s14a and when taking off hard in first gear bout 3000rpm the car back fires done it for the first time today, Anyone through a bit of light on it?
Dunnedriftin
14-12-09, 20:06
It probley has got to do with the cold weather tbh...


possibly over fueling ?
sideways boy
15-12-09, 19:54
Is she standard or modified? If she backfires she is overfuelling at that part of the rev range I reckon
Mick K
15-12-09, 19:55
Spec on the car before we diagnose lads maybe?
MarkII
15-12-09, 21:51
I'd say your afm is causing it, could be the weather or the fact that its just staring to give up.
Bobbys14
15-12-09, 22:27
Its me mates car only has a front mount on it and induction kit and has it boosting at .8
CarlCF4
15-12-09, 22:37
its probably not mapped and overfuelling
Dunnedriftin
15-12-09, 22:41
Its me mates car only has a front mount on it and induction kit and has it boosting at .8

dont think it should back fire if there the only mods tbh..

Maby check the plugs? my skyline was giving a bita trouble, but it was the plugs in the end...

Altho it could be the cold weather, but id check the plugs and the next thing is try another AFM