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Discussion Starter · #1 ·
My car use to run fine untill I did a Head/cam swap and converted to mass air. I have tried to fix this issue and still it happens, I cant get it to idle steadly. It starts and dies once or twice in the morning then drops down to 500 rpm stays there for 2 minutes then surges from 800-1300 rpm all day long.

1.I have rechecked all connection for the maf conversion its all good.

2. cleaned 10 pin connecters
3. Tried the idle reset in corral tech
4. got new Iab motor
5. cleaned tb
6. drilled hole in tb
7. cleaned maf electroics
8. got new act sensor

none of this stuff helped, Im at a loss here and want a nice idle to hear my TFS stage 1 chopping. the only other thing is that I have chrome valve covers with a push in breather not the one with the filter on it. Should I get the filter one and see if it helps?
 

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Discussion Starter · #3 ·
anyone else..
 

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There was a recent thread where they determined that their oil breather was the culprit - it caused too much air to get into the throttle body?? As I recall, they went back to the stock setup and that fixed that individual's surge. I know each case is different but you might want to research that one.

LOL
 

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The idle adjustment plate between the IAB and TB works great and is relatively cheap. F2PZ-9F939-A from Ford!
 

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Syed, I told you in the PM how I fixed my surge. All I had to do was reset the idle and make sure the tps was no more than .95v koeo. Did u try using a reg stock oil cap?
 
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