P0122

[Garrett]

Hey everyone! It’s me again! the guy with the bravada problems! so here are some details about the vehicle. It’s a 97 AWD Bravada, 4l60e, 6 cylinder, and has brought me through a new life journey of fun repairing it. I had the dreaded P0785 issue with it not downshifting, and I only say dreaded because I had gotten this vehicle for very cheap, as a hobby to work on in my down time from work. ( I still had another vehicle that was my go-to, well, until I loaned it to my sister and she blew the engine. Isn’t family great? So it was dreaded as its the only vehicle I have, other than my work vehicle). On to my point and a little breakdown on what I’ve done, in hopes that I could get some suggestions.

After fixing my previous issue, which was mentioned in another topic, I now noticed that I’m receiving a p0122 code, now, I did have to do a little work around the throttle body, sensor, I did not touch the IAC, I actually cleaned the living dead out of the throttle plate, walls, surrounding, butterfly, inside, outside, around and around. Now, I know for a fact that this issue was not happening until after fixing the downshift issue, but before I cleaned the living dead out of the throttle body. I’m assuming this occurred after removing the TPS sensor during a prior repair. So I’m going to ask the most easiest question first.

Does this vehicle need to do a relearn procedure and it will eventually go away on it’s own? Or is this code triggering something that needs some attention?

Thanks!

Topic

[college man]

Seeing the tps was removed, you may need to adjust it to get it back in spec.
see if this helps.

http://easyautodiagnostics.com/gm/4.3L-5.0L-5.7L/tp-sensor-tests-1

[Garrett]

Double checked the TPS, thanks for the link, College Man. TPS was good.

Ended up finding a crack and a chunk missing on the underside of the brake booster valve boot (and a hairline crack on the boot that goes to the engine. Im not sure what that part is called) Drove it around a bit and so far so good. I have a lot of driving to do today so if it comes back, I’ll know by this afternoon. I’ll post a picture of the valve boot as soon as I get to my PC for future purposes of others. (Can’t seem to upload from my phone)

Thanks

[college man]

[quote=”Garrett3673″ post=145666]Double checked the TPS, thanks for the link, College Man. TPS was good.

Ended up finding a crack and a chunk missing on the underside of the brake booster valve boot (and a hairline crack on the boot that goes to the engine. Im not sure what that part is called) Drove it around a bit and so far so good. I have a lot of driving to do today so if it comes back, I’ll know by this afternoon. I’ll post a picture of the valve boot as soon as I get to my PC for future purposes of others. (Can’t seem to upload from my phone)

Thanks[/quote]

Very cool on the find. keep us posted on your progress. 🙂

[Garrett]

Not sure if this will work the way I’m wanting it to, but here is the picture. The boot crumbled quite a bit once I got it pulled off. I actually had to slit one side of the boot carefully (flathead screwdriver worked well) to get it off in fear I’d damage the actual valve.

Will keep posted. B)

Attachments:

• 2015-08-3008.41.29.jpg

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