Join Date: Oct 2017
Location: Grand Rapids MI / North Chicago
I hooked the smoker up to the tail pipes for about 45 mins yesterday and only got a small exhaust leak after the bank2S2. Beleive me i prayed i would find on preO2 sensor leak. lol.
I reset PCM to all trims were 0 after the smoke test and as soon as it hit closed loop it they jumped back up again. Im not sure if it was all the mineral oil in the exhaust but it smelled a whole level of terrible after that startup.
After that I one by one disconnected and plugged the vacuum at the manifold for the EVAP, PVC and line to under the TB, line to right valve cover and its inlet to the TB, line to the EGR, distributer, even brake booster with almost no change. Im not pround of this but i even put an oversized balloon over TB covering all the spring and assembly with no change. (not saying i got a perfect seal)
The fuel trims are always the worst when the car is idling. watching them as I drive down the road sometimes but only sometimes the bank1LT will even get down to 10 but as soon as I come to a stop they come back up to 25.
I notice when I disconnect a vac line completely. it idles up. and the short trim goes up at about 10 which makes me this this must be a massive leak or problem to get the long term at a constant 25
For the first time ever I got P1133 insufficient switching for B1S1.
I know I tested it before but for kicks is my PCM/ sensor ground the same as the diagram for a 93? (above the starter)
Every once in awhile I get a B2S2 heat circuit code. Is it possible its effecting them all?
Is it possible this Camaro is actually from the "depths of the underworld"? At this point its making my exgirlfriend look like a saint
This weekend I will do a compression/let down test
Last edited by Danomax6.6; 06-20-2019 at 09:00 AM.