I was finally able to connect my computer to my ALDL today and I noticed at idle my BLMs are now 134ish. When I give it partial throttle to pass someone, they are 108-116. Rich I guess. Now at WOT the BLMs were 120. There were a total of 10 knocks during the first WOT to 80 mph. Then I got of the interstate, went back on the ramp, WOT to 100 mph and there were about 15 more knock counts. So there are now a total of 25 and my oil temp was 230, coolant 215. WOT shift points were 5500 rpms. Yeah it was kinda hot out today so maybe it is just the hot weather that causes me knocks. The grade gasoline I used today was 93 Octane, premium Chevron gas. Are these BLMs and knock counts at the normal range? Do I need to get a new ESC sensor? Thanks for the help.
Your idle is a tad lean, but nothing to really worry about. Your part throttle, however, is way rich. 108 is the richest (lowest BLM) that the ECM is usually set to report.
Your knock counts aren't really 25, the knock counts from the first excursion to WOT were recorded and remained displayed. What you probably had were knock counts in the same throttle region as the first WOT recording and you stayed in that region longer the second time.
For the knocks, firstly, is the EGR system present and functioning properly?
Don't need a new sensor..it is reporting correctly it seems.
I will check the BLMs tomorrow morning when I get up and ride around for a bit. I know my Vette is now running perfectly with the 24# injectors but I have no idea why the BLMs are way low like that. I see 128 is the ideal BLM for all situations. Also wouldn't BLMs of 128 make the most power through out the whole powerband??
BTW, I told Alvin to disable my EGR and VATS. He is the one who wrote me the chip. Should I ask Alvin about these low BLMs? The car still runs fine and runs like a raped ape off the line though, but I'm afraid I carbon fouled up the #8 sparkplug today... hmmmmm....
You'd be surprised how well the car will run and be rich or lean.
I know that EGR is a "pollution control" but it serves a higher purpose...it cools the combustion chambers which helps control detonation.
I will check the BLMs tomorrow morning when I get up and ride around for a bit. I know my Vette is now running perfectly with the 24# injectors but I have no idea why the BLMs are way low like that. I see 128 is the ideal BLM for all situations. Also wouldn't BLMs of 128 make the most power through out the whole powerband??
BTW, I told Alvin to disable my EGR and VATS. He is the one who wrote me the chip. Should I ask Alvin about these low BLMs? The car still runs fine and runs like a raped ape off the line though, but I'm afraid I carbon fouled up the #8 sparkplug today... hmmmmm....
Yes definately, if you send me a datalog I can re-go over the chip. The EGR codes has been disabled but not function. I leave it this way because if emmissions ever rolls around in your area all you have to do to pass is re-hook it up.
Do you have a copy of the program? I'm guessing you'd still have it.
Ok if you are familiar with Tuner Pro, I tried to record a file early this morning but as soon as I clicked the record button it said, "Hardware not found." Hopefully I should be getting the datalog to you sometime this week.
Corvette Store
Able to connect to ALDL. Now suddenly funny BLMs
