Customers vehicle. Having a couple issues I'm having a hard time dealing with. 98 LS1 98 Camaro/Pcm/Wiring Harness, this is a swap vehicle. Blower cam, .600 lift 240/240 ish 114lsa. Specs are from memory, it's been a while. Magnacharger, making 9 lbs of boost. 42lb injectors.
Set my spark tables, IFR table and related tables. I dont have the Banish tables but I'm certain I'm close. Modified all the other little things here and there.
I did the 2bar OS and the Cobalt baro sensor, all is well, logging/tuning went great. Tuned the VE from low to high on the dyno and on the road. Put over 100 counts in every possible cell, blended results into the VE table. Did this 3 times. When I enable closed loop, fuel trims are under 5% almost everywhere
PE is commanding 1.26 (11.56) and I'm hitting it right at 11.5-11.6 on the dyno all the way to the top even after adding and reducing load. I'm fairly certain VE is as dialed in as it's going to get.
At 9 lbs of boost through a 4x4 trans/transfer case, truck axles and 32" wheels/tires, it put down 430hp and almost 500 ft/lbs
I used the RAF histogram found somewhere around here, it spit out some low looking numbers for this cam but I used them and it runs fairly well. I have LTFT's disabled.
PROBLEMS: I need help tuning the cracker/follower, it comes down to idle faster than the pcm can catch it and will typically hunt than stall, mostly noticeable with the a/c on. The truck it's in (JEEP) can not idle up the motor, so I have idle around 875 and when you switch the air on it will hunt then settle around 800. To get the most torque at idle, I enabled bidirectionals, and took the afr to around 13.8-13.9 and around 33* it pulled the most vacuum and idled the best. in the 40-55kpa area and 400-1200 columns I set the timing to 33* and blended in surrounding areas in the High/Low timing tables and in the IDLE--->IDLE SPARK ADVANCE tabs, did the same. It still idles at 26* no matter what.
To richen it up, I set PE from 400-1200 to 1.05 and set TPS PE Enable to 0 from 400-1200, from what I understand this should force it into open loop at idle and hold it around 13.9. However, when I scan I still see STFT's working and spark advance staying at 26-27* I did a write entire also, still didnt change anything....
I reduced the idle/overspeed spark timing by 50% so it can't swing as much, that helped alot. It doesnt hunt for idle like it was. I still think it's trying to come down to idle too fast.
Am I missing anything ?
I've attached the file, I dont have a log on this PC.