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Decel pop / backfiring

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Old Sep 29, 2011 | 05:29 PM
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Default Decel pop / backfiring
SO I got a power commander 3 from fuelmoto and all the decel popping and backfiring stopped. Until last week. Now I am running sluggish, on decel it sounds like a pack of fire crackers in a coffee can and it backfires every time I start it. I rip the throttle at a light and sometimes it sounds like a gun that went off and then threw up.... I have only had the unit installed for about 2 months. I pulled it off yesterday and all of the values that were on my map are still on there so its not like it lost the fill. I have a stock ECM, Screamin eagle intake and V&H Longshots without baffles. I am using map # 805-009.... Does anyone know what I can do?

I emailed fuelmoto a couple of times but havent heard anything back.
 
Old Sep 29, 2011 | 05:51 PM
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Try unplugging the battery for a day or so, might reset the ECM.
 
Old Sep 29, 2011 | 05:51 PM
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Sounds like there are more than a few people having issues with the PC3.
 
Old Sep 29, 2011 | 06:10 PM
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There's more than a few people that have had trouble with anything ever made.
I've had my PC3 for 4 years and no problems.
 
Old Sep 29, 2011 | 06:29 PM
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Originally Posted by PigInaBlanket
There's more than a few people that have had trouble with anything ever made.
I've had my PC3 for 4 years and no problems.
with all due respect..... That doesnt help me.... AT ALL
 
Old Sep 29, 2011 | 07:48 PM
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Originally Posted by BigJLocke
with all due respect..... That doesnt help me.... AT ALL
I didn't say it would help you. I was responding to TennesseeMustangPerf's post.
Relax.
 
Old Sep 29, 2011 | 11:39 PM
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Basic's first. What color are the plugs? Have you checked thoroughly for a vacuum leak? Is your spark timing controlled by computer or do you have mechanical parts that move as you accelerate?
Is there any water in your latest load of fuel?
& what are your plugs gapped at?
Hatch.
 

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Old Sep 30, 2011 | 12:58 AM
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Originally Posted by BigJLocke
SO I got a power commander 3 from fuelmoto and all the decel popping and backfiring stopped. Until last week. Now I am running sluggish, on decel it sounds like a pack of fire crackers in a coffee can and it backfires every time I start it. I rip the throttle at a light and sometimes it sounds like a gun that went off and then threw up.... I have only had the unit installed for about 2 months. I pulled it off yesterday and all of the values that were on my map are still on there so its not like it lost the fill. I have a stock ECM, Screamin eagle intake and V&H Longshots without baffles. I am using map # 805-009.... Does anyone know what I can do?

I emailed fuelmoto a couple of times but havent heard anything back.
Not that I can give you anymore advice but if the emails don't work, shoot em a call. I got through pretty quick that way.

BTW, I agree with your quote totally!
 
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Old Sep 30, 2011 | 10:50 AM
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put a keitech on mine solved 98% of popping and back fireing
 
Old Sep 30, 2011 | 11:11 AM
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Can't offer any advice, and I don't intend to hijack your thread or anything, but I get a little decel popping from time to time. Is it such a bad thing?
 



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