2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
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AFR guage

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Old 04-17-07, 01:13 PM
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AFR guage

When I have my headlights off my afr reads that its just in the rich . . . (1 green bar)
When my markerlights are turned on it will drop back a bar or 2 into stoich.
and when my headlgihts are turned on it will drop back a couple more bars.

what could cause this...? and in turning my lights on is it really leaning it out more...?

i do have a aftermarket fuel pump and bigger secondarys etc...
Old 04-17-07, 01:49 PM
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1.3 liter piston eater

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have you done the fuel pump rewire mod ?
Old 04-17-07, 01:59 PM
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Are you using a wideband? or a narrow band??
Old 04-17-07, 02:09 PM
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Engine, Not Motor

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Turning the headlights on puts more load on the engine.
Old 04-17-07, 02:18 PM
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i have the AFR guages wire split into the o2 sensor... And no I have not done the fuelpump rewire mod is this something I should look to do?
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