p1336 "ignition system or missfire"
Thread Starter
On The Tree
Joined: Aug 2011
Posts: 151
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p1336 "ignition system or missfire" I recently let my truck sit for a few days, and went out there to start it and noticed i had a check engine light when it fired up.
got the code reader from "autozone" there actron scanner i think it is.
i got this code p1336 manufacture ignition system or missfire.
it has it stored twice.
[/B]
looked online, and found this is a crank position sensor issue?
its a 2000 chevy 5.3l transplanted into a 79 chevy 4x4. no rear 02 sensors, egr,vats, and all of the other bs you dont really need is gone.
can anyone give me any pointers on what i should look for or what to do. ive already tried erasing and they dont erase, or erase when i unplug the battery
got the code reader from "autozone" there actron scanner i think it is.
i got this code p1336 manufacture ignition system or missfire.
it has it stored twice.
[/B]
looked online, and found this is a crank position sensor issue?
its a 2000 chevy 5.3l transplanted into a 79 chevy 4x4. no rear 02 sensors, egr,vats, and all of the other bs you dont really need is gone.
can anyone give me any pointers on what i should look for or what to do. ive already tried erasing and they dont erase, or erase when i unplug the battery
Thread Starter
On The Tree
Joined: Aug 2011
Posts: 151
Likes: 0
idk why autozone scanner said, manufacture ignition system or missfire is what it came up with on the screen.
my brother is going to bring over Tech II the GM programmer/scanner and hopefully we can do something with it
had it running for a few mins, and after a few mins the truck starts to seem to missfire, which im assuming its because the CPS being screwed up.
can anyone tell me why i may need this crank position relearn? what causes my problem to happen? sat for about a week or so but was started every few days
anything? im unsure what causes this and has me curious
Here is the info on the code. Like Frost said in a swap vehicle it is hard to meet all the parameters to get a relearn completed so the code is usually just deleted. Its main purpose is to be able to calculate misfires properly.
Thread Starter
On The Tree
Joined: Aug 2011
Posts: 151
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so with that being said, i had it running for a few minutes, went to move it at a friends house and it started missing it felt like, (no blinking MIL) hardly wanting to run,
would this cause that issue? having the crank re learn issue
tried to do the relearn today, ran into many issues using tech 2... wont let me run the relearn says "device no authorized" or something to that extent... im assuming its because the transmission data is saying its in second gear and the ECM wants to see park or neutreul signal so it knows the vehicle wont take off once it revs up.
https://ls1tech.com/forums/pcm-diagn...l#post15527967 here is the posting about it
tricked the ecm into seeing it was in "park" so i could perform the re learn procedure.
still having other fueling issues it seems like. truck will randomly chug and die. then sputters back to life after it cranks for about 5 seconds when i go to refire it
How did you trick the computer into thinking it was in park?
Teching In
Joined: Oct 2010
Posts: 4
Likes: 0
From: Caledonia, MI
sorry for digging this thread up I am having the same exact problem in my 6.0 swapped 94 z71. going down the road it will start to chug and stumble, sometimes it catches its feet and will keep going, other times it will completly die and ill coast to a stop and restart it. I have replaced the crank position sensor twice. One with ac delco and one delphi which was considered the OE one. I am getting P1336
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Teching In
Joined: Mar 2004
Posts: 2
Likes: 0
From: Santa Clarita
I’m having the exact same issue, my motor will randomly turn off, but restarts once I try to. Have code P1336 crank variation relearn. Hopefully the relearn will fix this, I’m stumped at what else could make it just turn off. I’m worried that it will stall out during the relearn…. Anyone have experience with this?
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