Harness Wrapup + It's ALIVE!!!!  - 07/28/2011

My wiring is now 99% complete. Good enough to crank the car and move it under it's own power! Make sure to check out the video below! 

I only need to wire in my traction control control module and my dash pod gauges. Both should be easy since the receiving plugs and wiring are in place. I just have to wire the gauges and control module to a mating connector.

After my initial crank and idle I did a good bit of work diagnosing some weak spots in my tune. The biggest thing I've accomplished is that I used HPTuner's compare function with a stock tune to determine that my mail order tune was still set for stock fuel injectors when in fact I'm running SVO 42# green tops. Using Greg Banish's injector data I was able to correct the problem which kicked my idle into better shape :)

My IAC counts are a little high ~ 100-120 and I have a little bit of backfire, so that's concerning, but so far I have been unable to get it to go down using TB idle set screw + TPS and IAC resets.

Last weekend I installed my new LS7 card style MAF along with a new Samberg TB to intake adapter along with Hz/Airflow MAF calibration table from zkeller who has similar hardware. This leads me to my biggest issue at the moment. Low load and rpm acceleration falls on its face shortly after crank. From what I've seen though, it improves once the car has warmed up which leads me to think the problem is during open loop operation. To isolate the problem I disabled the MAP and made the necessary changes to force the PCM to run closed loop and only reference the VE table. Unfortunately that didn't help and actually made it a tad worse since lifting would cause the engine to choke and one time around the block I clunked out (no vacuum = holy crap my brakes don't work!). Right now I'm guessing it's a mix between an untuned VE table and an untuned MAF table. Hopefully I'll be able to get some tuning time in after the car comes back from the paint...