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99 B20b high comp swap car breaks up

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Old 12-05-2014, 08:38 PM
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Default 99 B20b high comp swap car breaks up

My civic been breaking up like it's in 2 step people are telling me it can be my iac valve any info on this ? Any other suggestions did full tune up and changed distributor . Happens at any rpm 99 civic with 99 spec b20 high comp with low intake manifold . Also my rpm fluctuates and idles REALLY low
Old 12-08-2014, 03:59 PM
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Default Re: 99 B20b high comp swap car breaks up

iac wont do this.

you need more fuel if the timing and valve lash are good
Old 12-11-2014, 03:36 PM
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Default Re: 99 B20b high comp swap car breaks up

Sounds like lean run to me. Time for a retune.
Regards
Dave
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