Howell TBI light stays on - JeepForum.com
 
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post #1 of 8 Old 09-11-2013, 06:11 PM Thread Starter
spoiler73
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Howell TBI light stays on

I installed the howell tbi on my jeep. Everything is good but after driving for about 15 or 20 min the light comes on. What could cause the light to come on?

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post #2 of 8 Old 09-11-2013, 06:52 PM
jbolty
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About 2 dozen things. what are the symptoms?

You need a code reader unless there's a way to do the blink count test.

You can look up late 80s chevy, light duty truck, 4.3 to get some ideas on the codes.

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post #3 of 8 Old 09-11-2013, 08:16 PM
Michaelgoesrawr
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Jumping pins on the connector will give you the codes. Check Howell for further instructions. Post back what you get.

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post #4 of 8 Old 09-12-2013, 06:35 PM Thread Starter
spoiler73
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I will check tomorrow to see what code it says it is. I found a site with the codes.
Thanks for the help and I will post what it is
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post #5 of 8 Old 09-14-2013, 09:41 AM Thread Starter
spoiler73
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I am getting 2 codes. I disconnected the battery to reset it and will try it again to see if I get the same codes. I will post them when I check again
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post #6 of 8 Old 09-14-2013, 02:36 PM Thread Starter
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Ok I am getting 1 code now. It is code 44 which is O2 sensor (lean exhaust). How can I fix this?
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post #7 of 8 Old 09-14-2013, 03:49 PM
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First I would test for a leak around the intake manifold and throttle body. Spray some carb cleaner around while it's running and listen for a change in RPM

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post #8 of 8 Old 09-15-2013, 02:23 PM Thread Starter
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Ok, I sprayed card cleaner all around the intake and tbi and no change in the rpm. Any more sugestions?
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