Can the tune be used to stop backfiring?

[Roach]

When I let off the gas, my car backfires 75% of the time between 2200 and 3000rpms. Its just getting VERY old now. Can anything in the tune be done to prevent/minimize this?

Thanks

[vschaos]

Quote: Originally Posted by Roach

When I let off the gas, my car backfires 75% of the time between 2200 and 3000rpms. Its just getting VERY old now. Can anything in the tune be done to prevent/minimize this?

Thanks

You sure its a backfire? I know on the stock exhaust when I had it everytime I let off the gas it popped and gargled. It didnt stop/go away until I got a 3 inch TBE. I believe it was more due to excess fuel the PCM was using....so maybe you could tune that out of the car, but cant say for sure.

[raven]

Quote: Originally Posted by Roach

When I let off the gas, my car backfires 75% of the time between 2200 and 3000rpms. Its just getting VERY old now. Can anything in the tune be done to prevent/minimize this?

Thanks

buy a prius

[uberingram]

I know Kevin@AGP was interested in doing this before they got into SCT but I'm not sure if he made any progress with it.

[Drastic_Said]

why would it be so hard to do?

have fuel decel cutoff when at 0% TPS. up until 1500rpms.

or maybe its more complicated than that, and im just taking the aem ems for granted.

[uberingram]

Quote: Originally Posted by Drastic_Said

why would it be so hard to do?

have fuel decel cutoff when at 0% TPS. up until 1500rpms.

or maybe its more complicated than that, and im just taking the aem ems for granted.

It probably is something that simple but I haven't talked to Kevin about since before SCT was released.

[nemiro]

Can be done rather easily. There are performance trade-offs, however, in terms of off throttle, back on again response.

[Mana4real]

Quote: Originally Posted by Drastic_Said

why would it be so hard to do?

have fuel decel cutoff when at 0% TPS. up until 1500rpms.

or maybe its more complicated than that, and im just taking the aem ems for granted.

Mines already done...

[Roach]

yeh I guess youre right, its just a popping. But its very annoying and started when I put the 50trim turbo kit in a few months back and after talking to Jon/Kevin about the SCT a few weeks ago I was hoping it would go away with it. So I can have them reprogram with a fuel decel cutoff?

Also you mentioned 1500rpms, mine pops between 2200 and 3000rpms only (so far at least)

[Drastic_Said]

Quote: Originally Posted by Roach

yeh I guess youre right, its just a popping. But its very annoying and started when I put the 50trim turbo kit in a few months back and after talking to Jon/Kevin about the SCT a few weeks ago I was hoping it would go away with it. So I can have them reprogram with a fuel decel cutoff?

Also you mentioned 1500rpms, mine pops between 2200 and 3000rpms only (so far at least)

what im saying is, you would program it in such a way that:

at 0% Throttle input, and under -5vac, and up to 1500, your fuel would shut off.

meaning once you get off the throttle, your fuel will cut out until 1500 rpms, and at that point you would be close enough to idle where you click into neutral.

it should be FAIRLY easy to do so w/ the SCT.