Good Spark, No Start -
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post #1 of 3 Old 12-17-2011, 01:39 PM Thread Starter
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1988 YJ Wrangler 
Join Date: Jun 2011
Location: Tampa
Posts: 21
Good Spark, No Start

I have been surfing the forums and haven't quite found the answer I'm looking for. So I recently rebuilt my throttle body to fix high idling, I was able to crank it back up and run it. Then a day later, I cranked it up and let it idle for around 15 min, then I cut it off, at which point in dieseled pretty severely and now it won't start. I got spark and fuel going into the intake. Any ideas?

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post #2 of 3 Old 12-17-2011, 02:29 PM
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1989 YJ Wrangler 
Join Date: Dec 2010
Posts: 76
hmmmmmmm.... Thats a good one

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post #3 of 3 Old 12-17-2011, 02:46 PM Thread Starter
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1988 YJ Wrangler 
Join Date: Jun 2011
Location: Tampa
Posts: 21
Update: So I disconnected the injector and it started right up, and would idle smoothly indefinitely. I then put the wire connector back on and restarted, very rough idle but works ok at open throttle. I looked in the throttle body with the injector connected, and it looks to be putting too much fuel in at idle. Is this a sign that my injector is bad/leaking? Or could it be the IAC? How can I check to isolate which one is causing the problem? I know the temperature sensor is working properly since I tested it with a mutlimeter and got good readings. Got to love the TBI
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