Tons of P codes... help!
Joined: 07-17-2020
Posts: 6
From: Houston TX
I had all those codes he had. I checked fuse #33 and it was blown. So I replaced it. And all the codes went away. But when I was going to take it for a test drive. I didn't have drive only reverse. I thought it was weird since before I replaced the fuse the transaxle was fine. So I took out fuse #33 and it shifted and drove fine. While the engine was running i put back the fuse and it also shifted and drove fine. I'm just wondering what that whole thing was about? Do you have any idea what happened?
Moderator
Joined: 01-23-2009
Posts: 26,533
From: Fredericksburg,VA
Since fuse #33 has nothing to do with the transmission my guess is that the fuse box is coming apart and when you replaced the fuse you pushed it back together.
Make sure all of the fuses and relays are fully seated and the bolts holding the fuse box together are tight.
Make sure all of the fuses and relays are fully seated and the bolts holding the fuse box together are tight.
Last edited by RJ_RS_SS_350; Jul 17, 2020 at 10:29 PM.
Joined: 07-17-2020
Posts: 6
From: Houston TX
I will do that tomorrow. Thanks.
Joined: 07-17-2020
Posts: 6
From: Houston TX
the bolts were tight. This dont make sense I take out the fuse and the transmission works fine. But the check engine light comes on. I even grounded the tcm like some youtube videos say. And it didn't help. I'm thinking of just driving it without the fuse 33 for awhile.
Moderator
Joined: 01-23-2009
Posts: 26,533
From: Fredericksburg,VA
Don't believe everything you see on youtube.
Fuse 33 controls the MAF, O2 sensors and the EVAP purge valve (and clutch position sensor).
So you are running without computer assistance.
Fuse #43 underhood and #25 on the BCM controls the trans.
My next guess is gremlins or goonies.
Fuse 33 controls the MAF, O2 sensors and the EVAP purge valve (and clutch position sensor).
So you are running without computer assistance.
Fuse #43 underhood and #25 on the BCM controls the trans.
My next guess is gremlins or goonies.
Joined: 07-17-2020
Posts: 6
From: Houston TX
It had those codes when I bought it. It was because the fuse was blown. It was driving fine. So when I replaced the fuse. The car takes forever to take off from 1st gear and after it does. It's like it slips to change gear. But when I took the fuse out. It takes off right away and shifts fine. So can it be that the tcm is bad?
Administrator
Joined: 10-13-2011
Posts: 40,083
From: Welland,Ont Canada
https://www.obd-codes.com/p0030
https://www.obd-codes.com/p0036
https://www.obd-codes.com/p0102
All three codes point to possible ground wire issues, could be a simple loose connection, I suggest checking those possibilities prior to ordering parts or jumping to conclusions about the computers or the MAF or O2 sensor
https://www.obd-codes.com/p0036
https://www.obd-codes.com/p0102
All three codes point to possible ground wire issues, could be a simple loose connection, I suggest checking those possibilities prior to ordering parts or jumping to conclusions about the computers or the MAF or O2 sensor