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Trying to follow up on a couple forums that i have posted in and i wanted to give an update on my L83 delete as per clinebarger's advice.I have a year on it and its running strong.i get 20 mpg (imperial lol)driving backroads to work and never checked it on a trip but its better than that for...

Figured i should close this problem out as the faulty part was the purge solenoid on my intake.

No i haven’t.I have noticed if you start the truck and drive say a km and the coolant temp just starts to move and you shut it off it will start perfect when you come back out.If the engine is at operating temp and you shut it off and immediately start it back up it will start but stumble a...

I’m not sure if it will do that or not but i will see what all it can do.If not i will get one of the boys i know to plug in.That’s a good idea to switch sides.I seen something online about the upstream can act up but show as downstream also.I’ll try the swap and if it doesn’t work i think i’ll...

The one that keeps popping up now is sensor signal stuck rich

I haven’t replaced any yet other than the o2 sensor that it said was bad just before i fixed the motor but even then it didn’t fix the o2 code which made me think something else was going on.It’s a NTK sensor and i thought about getting another and trying it since all 4 are same.I just seem to...

Sorry not sure what LTFT means.I’m not very knowledgeable on the electrical and settings stuff.I cleared the codes but keep getting different ones for the bank 1 downstream which i changed before the motor shagged up.I’m now getting one for sensor signal stuck rich and before it’s read high...

Something to look into for sure.It set a lean code twice for both banks.I have no CEL on for a few days but once it’s been run awhile you can tell something isn’t just right .You can just hear a flutter for lack of a better word.

After the crank relearn a month ago i had a PO138 o2 sensor high voltage bank 1 downstream.I had a code for this sensor last year and replaced it with a ntk sensor and it made no difference.My check engine light has been on and off the last month sometimes days before it comes on again.When i...

Installed a L8T non afm cam and gm performance lifters and blocked the oil ports for the vlom solenoids.

I had a code for a downstream o2 sensor and the Cel light on intermittently from the start a month ago but it’s been running great.This issue is only showing up the last few days if you run the truck for awhile and shut it off for fuel ect and restart in 10 minutes or so.Tonight was s 5 min stop...

Well its been a few weeks since my 5.3 was deleted and had the crank relearn and its been running great until yesterday.Now this truck sat for almost a year before i pulled the engine to do a delete and has had a couple tanks of fuel through it.Yesterday i drove to the hardware store after work...

This motor broke valve springs twice in 160000 km so they got updated just for insurance as i don’t know if they were original or not?They had a green stripe but i couldn’t find much out about them.When i put the heads on the bench you could push on the springs and they didn’t have the same...

Out of curiosity what does this crank relearn do?Does it fine tune the computer so it knows exactly where tdc is for timing purposes with the vvt and ignition timing or am i way off base?I have a low mileage Lbz silverado that my son wrecked a few years ago and i’m building it back for myself...

Thanks i appreciate your time and knowledge and you explained that simple enough that i even made sense of it lol.I find that sometimes people on sites like these talk in a language that only experienced builders understand and someone like me is scratching me head.I will try this tomorrow and...

Yeah it’s a mild cam i just put the L8T in so basically stock as i didn’t want to get into a tuning problem.People here tend to get tuning done away from here and i’m not smart enough to buy a tuner and then do any programming with it.

My son was going to borrow a laptop scan machine from a place he does s little truck work for.It’s supposed to be a good machine but i know jack **** about that stuff.Will this relearn be one procedure or do you do it for both the crank and the cam separate?Clinebarger i sure appreciate your...

Just finished doing an afm delete on a 2014 sierra l83 with a LOT of help from clinebarger.It fired up quickly with almost immediate oil pressure and runs smooth as silk but the check engine light is on and codes P0300 and P0138 are showing as permanent on the scanner.I ran it for 20 minutes so...

Well i got it fired up and it seems to idle nice.It’s showing code 0300 for random misfires but it doesn’t sound like it’s missing.I filled the oil pump before i installed it and filled the filter and i was some surprised how fast i had oil pressure.I sure appreciate the guidance you have given me.

Sounds good.I was going to reuse the high pressure fuel lines but was unsure if i should loctite them and what torque spec i should use or if it’s a nono?