Same thing I do with mine. Under "VCM Controls" in the scanner program, "Fuel and Spark" tab, I turned Closed Loop to "OFF". When i do that, "Fuel System Status changes from CL - Normal to OL - Not...
Type: Posts; User: swedluap
Same thing I do with mine. Under "VCM Controls" in the scanner program, "Fuel and Spark" tab, I turned Closed Loop to "OFF". When i do that, "Fuel System Status changes from CL - Normal to OL - Not...
I think I figured out the overfueling problem, it is possible it is going into COT enrichment. Haven't had a chane to test that out yet, but it makes sense.
Still at a loss at why I can't lock it...
Anyone?
The only other issue I'm having seems to stem from the same source. When OL - Accel/Decel becomes active, the PCM seems to ignore the commanded AFR (set to enrich to no more than 11.8) and...
Trying to do a ltft tune on an 04' Colorado I-5. The problem is, after setting up a tune to force SD mode, the fuel system status is reporting "OPEN LOOP - NOT READY" even though I have closed loop...
Erm, Thought that was part of the deal. Ok, so next time, no open loop. Got it. Thanks.
I have an '07 Colorado with Several modifications and I have had the VCM Suite for several months (learning how to use it). I decided to try to tune the VE tables Yesterday ( now that I finally...
There is no difference at WOT, after all the engine will only pull so much air. The difference is felt in throttle response. Since the 4.2 TB is bigger it lets more air through at any given ETC...
OK I figured it out. Under the "Idle" then under "Idle Airflow" changed "ECT Area Scalar" from the stock # 2489.1250 to the # from a Trailblazer which was 4500.0000, problem solved. No DTC's and...
I got hold of a 4.2L Throttlebody and decided to install it on my 2.9L in my 07 Colorado. It runs great at an idle and lower rpms but when I get on it a couple times it goes into "reduced power mode"...