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Re: Sputter / backfire FiTech fuel injection
[Re: BDW]
#2612223
01/25/19 07:31 PM
01/25/19 07:31 PM
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Joined: Dec 2009
Posts: 20,622
in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,622
in a cattle trailer down by th...
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Not a coincidence. I've seen plenty of bad plug wires that didn't even look bad.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost coming soon!
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: Sputter / backfire FiTech fuel injection
[Re: John_Kunkel]
#2612366
01/26/19 12:32 AM
01/26/19 12:32 AM
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Joined: Sep 2007
Posts: 14,889
up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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oh, wikipedia, lol. Wikipedia is only as smart as the last idiot to edit it. What's next? Snopes?
They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
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Re: Sputter / backfire FiTech fuel injection
[Re: BDW]
#2612428
01/26/19 03:40 AM
01/26/19 03:40 AM
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Joined: Jan 2003
Posts: 30,989
Oregon
AndyF
I Win
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I Win
Joined: Jan 2003
Posts: 30,989
Oregon
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Update, I checked the plug wires and noticed some cracks in the outer rubber. I had another set, so I replaced them and took the car for a ride. No backfire and ran great. Coincidence or could that have been it?  Yep that will do it. Bad wires will cause a misfire which dumps raw gas into the hot exhaust system and boom, backfire. The important lesson is that just because the engine is running poorly doesn't mean the fuel injection is bad. There are lots of things that can go wrong.
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Re: Sputter / backfire FiTech fuel injection
[Re: Supercuda]
#2612832
01/27/19 12:01 AM
01/27/19 12:01 AM
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Joined: Dec 2013
Posts: 198
Stinnett, Tx
rumblebee4232
member
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member
Joined: Dec 2013
Posts: 198
Stinnett, Tx
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Other day I got on the gas and it sputtered and seemed to backfire.
Backfired out the exhaust or the intake? IAC reading on the handheld? Be pretty hard to backfire out the exhaust, that would be a misfire. back·fire /ˈbakˌfī(ə)r/Submit verb 1. (of an engine) undergo a mistimed explosion in the cylinder or exhaust. "a car backfired in the road" synonyms: misfire "the engine backfired"
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Re: Sputter / backfire FiTech fuel injection
[Re: rumblebee4232]
#2613008
01/27/19 12:38 PM
01/27/19 12:38 PM
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Joined: Sep 2007
Posts: 14,889
up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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Other day I got on the gas and it sputtered and seemed to backfire.
Backfired out the exhaust or the intake? IAC reading on the handheld? Be pretty hard to backfire out the exhaust, that would be a misfire. back·fire /ˈbakˌfī(ə)r/Submit verb 1. (of an engine) undergo a mistimed explosion in the cylinder or exhaust. "a car backfired in the road" synonyms: misfire "the engine backfired" Farting out the tail pipe isn't a mistimed issue. It's a no fire issue and some other cylinder's residual exhaust pulse is igniting the air/fuel mixture. As evidenced by the OP's findings. Coughing out the carb is a mistimed event. Two different things.
They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
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