Hey there,
Iv been working on this 88 corvette for last few weeks which came in with a problem of just turning its self off.

Long story short, was thowing 33 and 36 so had to replace the maf and relays then found out the wiring loom had worn though on the fire wall and still causeing it to thorw 33 and 36. Fixed that up and even got a replacement ecu to try and still getting those errors. Following the block diagram of testing in the manual every thing tests ok and at idle its getting a 2.01V so Iv got no idea whats triggering the error 33. Any thing you can think of iv tried.
The shutting off problem is gone tho.

So decided to just convert it to speed density using a conversion kit I make for Nissan.

Got that up and running fine and not throwing error 33 any more and mixtures/timing all where its meant to be, Even picked up 29wkw.

The problem I have now is after running it and it going into closed loop the next start up it will throw a error 36 for the burn off.

Does any one know or any way to disable this code. Such as using a resistor?
Im not sure how it senses a error for this so even if you could let me know that it would be helpful.

Or if there is a way to disable the function in the ecu, Maybe using a 85 bin?.

Thanks.

 

Found a commented assembly version of the $32B so was able to find the bit mask for error 36.
So far after running it for 10mins to get up to temp then turning it off for 1 min then back on the error hasnt re-apared.

Will have to do some more testing tomorrow with a long drive to insure it goes into closed loop but it looks to of fixed the problem.

Iv attached a modified $32b xdf for any one that does something similar in the future.