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F20b nightmare swap HELP!!!!!!!

 
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Old 08-20-2012, 08:51 PM
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F20b nightmare swap HELP!!!!!!!

Alright guys and gals I need some help cause I am stumped. Watch the video and tell me what ya think. No check engines and everything mechanically is sound.
o
It's a F20b swap in a 2000 Prelude Base model. Intake manifold, oil pump, etc all changed from old motor so its all set proper. Some how last night it randomly started idling fine and reving fine but had a crank position sensor code so wouldn't rev past 3 as to be expected. Once batterie was disconnected and everything was reset it went right back to the **** idle and not reving. Oil, coolant, trans fluids all good. Anything else needed to know let me know.

Prelude Rev Problem - YouTube
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Old 08-22-2012, 02:16 PM
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Re: F20b nightmare swap HELP!!!!!!!

I have this swap in my 4th gen. What ecu do you have? And what injectors are you using? Also, if you have an air leak from your intake manifold, you'd have terrible idle. Maybe spray some carb cleaner around your gaskets, and if it starts to die down, you'd know you have an air leak. Seems like it's not getting enough gas though, either from wrong injectors, or ecu.
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Old 08-22-2012, 02:24 PM
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Re: F20b nightmare swap HELP!!!!!!!

Also part of troubleshooting, try resetting your ecu by disconnecting your negative battery terminal for 40seconds. I've also seen if the distributor isn't adjusted to the right angle, it acts stall'ish.
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1st: (93 Prelude) F22a1 to H23a JDM Blue Top - STOLEN
2nd: (95 Prelude) F20b - SOLD
3rd: (99 Civic, what a mistake) D16y8 - SOLD
4th: (94 Prelude) H23a1 to ?????? - CURRENT
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