LigHtEmUp01

my car hhas been cutting out and i put a scanner on it and it said high res failure. i have no idea what that means.

bigj2717

iTrader: (15)

Its probably the opti

transbird95

iTrader: (4)

That usually means the optispark is failing. The harness that plugs into the top could be corroded too. Good luck

LigHtEmUp01

well i just replaced the opti and with the old ipti its never done this.

bigj2717

iTrader: (15)

You put in an old opti? It could be bad opti harness as well

transbird95

iTrader: (4)

What is the exact code? That will help us a lot more if you could post it. When they fail it wont always give you a high or low res. code, but it usually has something to do with the opti.

fex77k

iTrader: (2)

High resolution failure is usually a code 36, I got one on mine a few weeks ago, my MSD opti is shot.

LigHtEmUp01

i was saying the car never cut out like its doing with the new opti and it says 36 high res failure! im go0nna check teh plug on the opti today

transbird95

iTrader: (4)

Hopefully its the connector. They can get pretty corroded and cause problems. I heard of people having bad optis out of the box before but never had one personally.

LT1John

thats the opt. thats the code i got.

fex77k

iTrader: (2)

If you have moisture in the opti it will kill the high resolution sensor. You can drive the car but it will run like **** under 3k rpm when it uses the high resolution part. My GM service manual quotes "May experience extended cranking times when a code 36 is set" it also says that it won't hurt the engine. The Snap-On scanner showed me increasing the knock count when I would get on the throttle below 3k. This is probably because the engine doesn't know where it is at.

LigHtEmUp01

so there is a high res sensor in the opti? i cant believe it did this the day i put it on and i was extremely careful. can tuning it make it go away?

fex77k

iTrader: (2)

Yea there is two pickups, one is a low res similar to a flying magnet setup and the other is the high res that generates signals for all 360 of rotation.

95chevyz28

no a tune wont make it go away. Dont we all wish it was that easy...lol....your in for a new opti, sorry to say.

LigHtEmUp01

what about trying a icm because it runs good until after the car warms up then randomly it will cut out and i get that code? thats y i cant believe its the opti when seriously i had it one day didnt get wet and was installed properly and my harness is and plug is good!

fex77k

iTrader: (2)

I don't know what to tell you, but if you set that code, you can ohm out the wire from the computer to the opti for the high resolution signal, if you read a small value less than 5 then its not the harness.

qc97z

iTrader: (9)

Dude....I know it sucks....
IT'S THE OPTI.

Opti's show up brand new in the box, dead. Other opti's fire right up and you get 10 miles down the road...and dead.
Some opti's go 100k miles without a hitch.
The High-Res code is an issue with the high resolution sensor inside the opti.
Time to return that opti for a new one.
Hope you didn't get it from Chandler. Good luck with their DOA junk.