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Under engine load, goes lean then shuts off.

   
Old 06-10-18, 03:07 PM
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Under engine load, goes lean then shuts off.
I'm having a hard time figuring this one out.
It starts fine. When you give it gas, afr's jump to 18 or 19, then it shuts off.
I've got a Haltech Elite, new primaries and I've triple-checked the wiring.

Anyone have any ideas?
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Old 06-12-18, 02:43 AM
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Was it running good with the haltech at some point or is this a new installation? I ask because my guesses are either the map or tps arnt hooked up (a friend's car did something similar), or maybe the acceletion enrichment hassnt been tuned at all.
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Old 06-12-18, 02:51 PM
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Originally Posted by Jake the Snake
Was it running good with the haltech at some point or is this a new installation? I ask because my guesses are either the map or tps arnt hooked up (a friend's car did something similar), or maybe the acceletion enrichment hassnt been tuned at all.
Was running fine previously, so the tuning isn't the issue. I'm thinking it may be an alternator problem.
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Old 06-12-18, 06:25 PM
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So meter the alternator.

I'd hazard a guess it's a fuel delivery problem, maybe a dying pump.
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Old 06-12-18, 07:37 PM
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New pump, Fuel Pressure Gauge reads fine thruout the operating range.
How do you meter the alternator?

Originally Posted by Acesanugal
So meter the alternator.

I'd hazard a guess it's a fuel delivery problem, maybe a dying pump.
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Old 06-12-18, 09:12 PM
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...with a multimeter...
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Old 06-20-18, 09:47 PM
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Well, the alternator's good.
I'm at a loss. Any other ideas?
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