rebuild, idle at 1100 then surges
#1
Rotary Freak
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rebuild, idle at 1100 then surges
I have a rebuilt street ported motor, the car starts up fine, then the idle searches and usually lands at 1100rpms, stays there for a few minutes then begins surging between 800-1500rpms, any ideas?
#3
Your throttle body air bleed settings are probably off for the new motor. The ISC causes the idle to bounce up and down like that (white plug about midway on the back side of the upper intake manifold.) Try to adjust your bleed screw underneath the throttle body. Close it more or completely close it. Are you using a Power FC by any chance?
#4
Rotary Freak
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Im using the power fc. The bled screw is completely closed. The idle finally settled at 1100rpms again for 10 minutes, so I hopped in and took it around my residential side road, when I got back the idle sat at 2100 rpms and didnt drop at all now.
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#9
Mr. Links
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Originally Posted by teamafx
ah, now the car hardly even runs at all, once I reset the ecu. I need to get all the 3bar map sensor settings, and the injector settings too.
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