o2 sensor issues
07-27-2022, 09:21 PM
#1
o2 sensor issues
ok been a while since iv needed help with something like this. but here is the deal. went to my sister house everything was fine. after when i was leaving the car wouldnt turn over. i knew what the issue most likely was, it was the small plug in the ecu that i believe goes to the bcu, the clip broke. i gave it a push and the car fired right up. obviously i had a bunch of codes, which i cleared. non came back except for p0130 and p0131. basically b1s1 o2 malfuction and low current. so i get home and i tried my spare ecu, that threw a p0132, high current code only. which is weird cause it should throw the same code. so 2 ecus with 2 different codes. i did find a damaged with so i fixed that and the p0130 code went away on the one ecu, but i still get at p0131 on one and p0132 on the other ecu. i checked all the wiring to the o2 plug, all have .4 ohms so that is good, non short to ground, all have continuity, so no issues there. the power wire to fuse box is giving me 12v and 14 when running. i tested it with the o2 out of the exhaust just laying there, same code, unplugged the o2 completely, same code. i have no freaking idea what the deal is. i dont wanna believe that both my ecus are bad coincidently in the exact same manner. but it is possible i guess. has anyone ever had this issue cause im lost here.
07-28-2022, 10:22 PM
#3
12 volts.
I found my issue tho. Pin 92 on both ecus is bad. One reads 1.5 volts when it should be 2.9 with key in on position, that one throws the low voltage code, the other ECU reads 4.9 volts on the same pin when it should be 2.9, and throws the high voltage code. Both these ecus I had the small plug come out a bit and car wouldn't start, pushed plug down and it worked, but with those codes. My plug lock broke. So that's my issue.
Know where I can get that small plug or entire harness that goes into the car?
I found my issue tho. Pin 92 on both ecus is bad. One reads 1.5 volts when it should be 2.9 with key in on position, that one throws the low voltage code, the other ECU reads 4.9 volts on the same pin when it should be 2.9, and throws the high voltage code. Both these ecus I had the small plug come out a bit and car wouldn't start, pushed plug down and it worked, but with those codes. My plug lock broke. So that's my issue.
Know where I can get that small plug or entire harness that goes into the car?
07-28-2022, 11:13 PM
#4
Senior Member
iTrader: (6)
12 volts.
I found my issue tho. Pin 92 on both ecus is bad. One reads 1.5 volts when it should be 2.9 with key in on position, that one throws the low voltage code, the other ECU reads 4.9 volts on the same pin when it should be 2.9, and throws the high voltage code. Both these ecus I had the small plug come out a bit and car wouldn't start, pushed plug down and it worked, but with those codes. My plug lock broke. So that's my issue.
Know where I can get that small plug or entire harness that goes into the car?
I found my issue tho. Pin 92 on both ecus is bad. One reads 1.5 volts when it should be 2.9 with key in on position, that one throws the low voltage code, the other ECU reads 4.9 volts on the same pin when it should be 2.9, and throws the high voltage code. Both these ecus I had the small plug come out a bit and car wouldn't start, pushed plug down and it worked, but with those codes. My plug lock broke. So that's my issue.
Know where I can get that small plug or entire harness that goes into the car?
07-30-2022, 02:17 PM
#6
Tom I know the wreckers have had a couple lnfs over the last few years. If your lucky enough they didn’t crush them for scrap I doubt the ecu are stolen. May get em and a harness cheap ish. Pretty sure they are almost all owned by the same group now. So they can check all inventory and let you know which one to go to
08-10-2022, 08:26 PM
#8
Tom I know the wreckers have had a couple lnfs over the last few years. If your lucky enough they didn’t crush them for scrap I doubt the ecu are stolen. May get em and a harness cheap ish. Pretty sure they are almost all owned by the same group now. So they can check all inventory and let you know which one to go to
Thread
Thread Starter
Forum
Replies
Last Post