OBD2 not working
#1
OBD2 not working
RED/BLUE pcm lq4 into a Grand Wagoneer.
Blue pin 58 to OBD2 pin 2 showing ~0.4v fluctuating
OBD2 4 & 5 grounded
OBD2 16 is hot at all times (run through silverado fusebox)
Engine starts up and appears to run fine. However, when I hook my ELM 327 up it says failure to detect protocol. I'm confused why it doesn't work.
Any ideas?
-Nick
Blue pin 58 to OBD2 pin 2 showing ~0.4v fluctuating
OBD2 4 & 5 grounded
OBD2 16 is hot at all times (run through silverado fusebox)
Engine starts up and appears to run fine. However, when I hook my ELM 327 up it says failure to detect protocol. I'm confused why it doesn't work.
Any ideas?
-Nick
#4
I've also wired up an 02 silverado dash and that does not seem to function either. The idle is high (i'm guessing around 2k).
The pcm was tuned by wait4meperformance. I told them to remove VATS. Could that have caused the serial data issues? I saw in another thread that the serial data voltage should varry between 0-7v. I'm getting 0.05-0.4ish.
The pcm was tuned by wait4meperformance. I told them to remove VATS. Could that have caused the serial data issues? I saw in another thread that the serial data voltage should varry between 0-7v. I'm getting 0.05-0.4ish.
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#8
Went to AutoZone and got the cheapest scanner and it was able to read the computer. No error codes.
I guess my scanner doesn't like the pcm.
Thinking of ordering a PLX Kiwi bluetooth for the droid. My dad has one and likes it. However, I would like hptuners so I can play with things.
I guess my scanner doesn't like the pcm.
Thinking of ordering a PLX Kiwi bluetooth for the droid. My dad has one and likes it. However, I would like hptuners so I can play with things.