PKRWUD or anyone with a DMM

PrplMonster · 09-02-2001, 11:45 AM

Well........ I changed TB's. I went from a BBK 70mm to a Motorsports 65mm. After all it was all said and done, i start up the car, and she barely runs. So i do a KOEO and get code 56. That made me call pro-flow for some idea's, considering the fact that ALL i did was swap TB's. When i talked with the guy at pro-flow, he said C & D wasn't supposed to have any voltage with the car NOT running but with the key on. So i started tracking burns/shorts.

I tested pins C & D while running(idling) and got anywhere from 9.2-11.4VDC
With the car on and the MAF disconnected with pin C & D i get 5.8vDC(with a known good computer)

As far as burns/shorts, honestly there are none, I have the entire harness out of the car.

To clear up how my meter works, the scale displays like this:
OUCH(auto)
OU.CHk - 20K
OUC.Hk - 200k

Resistance in 200k scale with PCM disconnected:

I got 0, nada, nothing... C & D or B & D

PCM connected in the 20k scale(OU.CH) i couldn't get a reading.

With the meter in the 200k(OUC.H)
B & D = 100.4k
C & D = 129.6k

thanx for the help chris!!!!!
.dave

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09-02-2001, 11:45 AM	#6
PrplMonster Registered Member Join Date: Mar 1999 Posts: 88	Well........ I changed TB's. I went from a BBK 70mm to a Motorsports 65mm. After all it was all said and done, i start up the car, and she barely runs. So i do a KOEO and get code 56. That made me call pro-flow for some idea's, considering the fact that ALL i did was swap TB's. When i talked with the guy at pro-flow, he said C & D wasn't supposed to have any voltage with the car NOT running but with the key on. So i started tracking burns/shorts. I tested pins C & D while running(idling) and got anywhere from 9.2-11.4VDC With the car on and the MAF disconnected with pin C & D i get 5.8vDC(with a known good computer) As far as burns/shorts, honestly there are none, I have the entire harness out of the car. To clear up how my meter works, the scale displays like this: OUCH(auto) OU.CHk - 20K OUC.Hk - 200k Resistance in 200k scale with PCM disconnected: I got 0, nada, nothing... C & D or B & D PCM connected in the 20k scale(OU.CH) i couldn't get a reading. With the meter in the 200k(OUC.H) B & D = 100.4k C & D = 129.6k thanx for the help chris!!!!! .dave