Random firing when engine is not running
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Joined: Mar 2009
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From: Westchester/Fairfield County
Originally Posted by camuman,May 20 2010, 09:30 AM
ROFL. omg i get this too. i kept wondering why is my car farting? thank god it seems somewhat normal.
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Joined: Jun 2006
Posts: 546
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From: Somewhere in Oregon
I've had it backfire and blow off vacuum hoses on a hot start. Worse yet, and not many will actually believe this (I did post a thread the day it happened). I had it backfire once on a hot start and then run backwards. I was at a light and killed it (stupid Iron man clutch) when trying to restart it popped and sorta made a buzzing sound and then started running, didn't sound right but I needed to get out of the intersection, I let the clutch out and the car started backing up. I killed it imediately, jumped out and told the folks behind me to go around, I figured it was messed up. Got in and restarted it and it ran fine, though it was idling high due to a popped vacuum hose. I called my tuner as soon as I got into work and he said he'd never heard of it before except in a diesel. I've had 2 stroke dirt bikes catch wrong and run backward but I didn't think a modern engine could do it w/out messing stufff up. I't been fine since. I think it's a little rich on a hot start and need to get it adjusted.
Joined: Oct 2002
Posts: 8,044
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From: South Florida
Originally Posted by Mistman,May 20 2010, 12:00 PM
I've had it backfire and blow off vacuum hoses on a hot start. Worse yet, and not many will actually believe this (I did post a thread the day it happened). I had it backfire once on a hot start and then run backwards. I was at a light and killed it (stupid Iron man clutch) when trying to restart it popped and sorta made a buzzing sound and then started running, didn't sound right but I needed to get out of the intersection, I let the clutch out and the car started backing up. I killed it imediately, jumped out and told the folks behind me to go around, I figured it was messed up. Got in and restarted it and it ran fine, though it was idling high due to a popped vacuum hose. I called my tuner as soon as I got into work and he said he'd never heard of it before except in a diesel. I've had 2 stroke dirt bikes catch wrong and run backward but I didn't think a modern engine could do it w/out messing stufff up. I't been fine since. I think it's a little rich on a hot start and need to get it adjusted.
consider my mind BLOWN.
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Joined: Jun 2006
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From: Somewhere in Oregon
Yeah, it really did. I know it's hard to believe, people asked "R U sure it was in a forward gear?". I'm not stupid (generally) and have been monkeying w/engines for 30 yrs so I'm pretty sure what happened really happened. I tell ya, it freaked me out and I was sure it caused some damage somehow but everythings fine, no issues.
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Joined: Nov 2003
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From: New England
While the ignition is off, poke the injector wires with pointed light tester see if there is juice.
The only thing I could think, most ecu is powered by ground. Maybe there are juice on some of the sensors-relays-fuel pump-injectors and so on.
The only thing I could think, most ecu is powered by ground. Maybe there are juice on some of the sensors-relays-fuel pump-injectors and so on.
