Daryl Z71's 2006 Silverado Z71 Re-build

LongrangeLauber · July 1, 2015

Luckily on the 99-02 trucks all you have to do is ground the yellow wire on the low beam. Did it and now with 4 HID'S I light up the night

Daryl LBZ · July 16, 2015

So today I got two codes. P0030 and P0135. Anyone have experience with these? Is it as simple as new 02 sensors?

kstruckcountry · July 16, 2015

I had the right post cat go out, and currently have the left pre cat throwing a "heater" code. The right one has been fine since I replaced it, just need to order and do the left.

Does it only throw the code when it's a cold start?

Daryl LBZ · July 16, 2015

It threw them today when I came out of the Yamaha dealer after letting it set for about a half hour.

sahls01gmc · July 16, 2015

Luckily on the 99-02 trucks all you have to do is ground the yellow wire on the low beam. Did it and now with 4 HID'S I light up the night

Same deal on my 2001 GMC?

LongrangeLauber · July 16, 2015

Same deal on my 2001 GMC?

Most certainly should be! Basically the same truck except for logos and a few body parts

kstruckcountry · July 17, 2015

It threw them today when I came out of the Yamaha dealer after letting it set for about a half hour.

I would check the fuses first. O2A/02B I think... If fuses are good I'd check and make sure they're getting power (key on, motor cold).

Daryl LBZ · July 17, 2015

I would check the fuses first. O2A/02B I think... If fuses are good I'd check and make sure they're getting power (key on, motor cold).

Okay I'll look at that tomorrow. I've had these codes before I think with the original motor, but this is the first I've seen them in a good while. I'm having other weird electrical issues too so I hope this isn't all one big problem.

kstruckcountry · July 17, 2015

Ground somewhere could be an issue, but that should be an easy check between ground pin and another good ground. I'd just want to make sure before dumping $80 per sensor lol

Daryl LBZ · July 17, 2015

Ground somewhere could be an issue, but that should be an easy check between ground pin and another good ground. I'd just want to make sure before dumping $80 per sensor lol

Haha definitely. If I do need sensors I'm going with Denso's. About $100 for both of them.

LongrangeLauber · July 17, 2015

Haha definitely. If I do need sensors I'm going with Denso's. About $100 for both of them.

Whwn I originally replaced all mine as well as the Y pipe I installed Bosch cause normally they make quality stuff. Nope. Avoid Bosch automotive parts all together. Everything I've had from them has been crap. Went with Denso's last year and it corrected all my exhaust codes. Still getting a misfire, I contribute that to the MSD wire set OR a faulty coil pack. The spark plugs are NGK Iridiums so I doubt it's those

Chris · July 17, 2015

Whwn I originally replaced all mine as well as the Y pipe I installed Bosch cause normally they make quality stuff. Nope. Avoid Bosch automotive parts all together. Everything I've had from them has been crap. Went with Denso's last year and it corrected all my exhaust codes. Still getting a misfire, I contribute that to the MSD wire set OR a faulty coil pack. The spark plugs are NGK Iridiums so I doubt it's those

Bosch wires and AcD plugs are a good combo. I think Denso O2 sensors are stock

Daryl LBZ · July 20, 2015

Ground somewhere could be an issue, but that should be an easy check between ground pin and another good ground. I'd just want to make sure before dumping $80 per sensor lol

I checked the fuses on Friday, and all of them are good. Same with the low beam headlight fuses. I'm completely lost on the headlight issue.

Daryl LBZ · July 25, 2015

Does anyone know what these are? Do they have anything to do with the headlights? The one on the passanger side is just hanging around which is the side that my low beam won't work on. The one on the drivers side is a different color which is gray and it's snapped into the transmission cooler support. No idea if this has anything to do with my light problem? This is starting to irritate me...