P0321 - Anyone Ever Experience this ?

stkjock

Corn Powered 900 HP!
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Drove the car for like 45 mins yesterday and just as I'm pulling into a spot at Cars and Coffee, car dumps into Failsafe mode and sounds terrible.

Shut it down, pulled out my SCT pulled the codes, 2104 - which I have had before and believe my TB motor may be failing again, seems the big Whipple mono blade taxes these motors badly, even with the upgraded internal gears, that code cleared when I cleared it with the SCT.

Then P0321 - which is a ECM/RPM/Misfire code and sometimes seems to indicate the crank position sensor maybe bad.

Had to have the car towed home as no shops open on Sunday to leave it.

Thoughts and suggestions appreciated.
 

stkjock

Corn Powered 900 HP!
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Jan 25, 2010
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Location
NY
want to follow up on this, turns out that the P321 was erroneous. I finally dug into this issue last month and first attempt at replacing the TB servo was done yet the 2104 code was still there. I took it all apart again yesterday and reassemble it methodically and slowly, I think that the aftermarket (Dorman) TB motor assembly has tolerances slightly different than OEM, when one torques down on the housing screws beyond the first sign of resistance it caused the blades to have much more resistance in movement.

hope this helps someone in the future.
 
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