New injectors, running rich. Howell fuel inject. -
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Go Back > Models > Jeep CJ Forum > New injectors, running rich. Howell fuel inject.

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Unread 04-19-2013, 09:30 PM   #1
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1980 CJ7 
Join Date: Mar 2011
Location: chandler, az
Posts: 279
New injectors, running rich. Howell fuel inject.

Error code 45, running rich, check engine coming on and off.
Fairly new o2 sensor also.

Anyone go through this with the Howell setup?


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Unread 04-20-2013, 09:19 AM   #2
Jon In Tucson
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1983 CJ5 
Join Date: Aug 2008
Location: Tucson, AZ
Posts: 790
Is this a new installation or just new injectors? If this is just replacement, is it possible that the injectors are the ones for a big block (454) rather than ones meant for the smaller engines (4.3,5.7)? The bigger injectors will certainly run rich as the injector pulse can't be shortened enough to keep the fuel burn within program parameters. God bless.
Jon In Tucson
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