Breaking up as boost comes in

93oh

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I had new motor installed in my 04 it idled fine threw code for throttle body iac and as boost hits misses like crazy. Any ideas? Only code is iac..
 

93oh

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Iac code and motor stock rebuild just because. New Pistons overbore and arp studs and rod bolts. Car had 181k plus. Could be coils as I didn't replace same.
 

BO TY KLR

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Need more info. How much timing is in it? Spark plug gap? Put them at 25 thou and see if that helps. Log the voltage as well. Make sure voltage isn't dropping as rpm increases. Alts are garbage in these cars
 

93oh

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Timing is in tune not sure what it is. The plugs seemed like no gap set. What plugs you guys run?
 

93oh

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Thank you for your help. The gap and new coil packs solved one issue.
 

hotcobra03

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What was iac code #..there are more than 1

High volts
Low volts
No volts

# is important for pinpoint tests..
 

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