Injectors + MAF = Problems
Injectors + MAF = Problems Can someone take a look at my tune and give me any suggestions to help keep my car on. I just installed some 42# Lucas injectors and a 85mm MAF with the resistor removed. The car starts, but I have to keep my foot on the throttle to keep it from turning off. I can't log anything cuz it won't stay on long enough. All I did was set up IFR and a truck MAF table.
Those are some big injectors to idle with. Have you
decreased the min pulse limit and stuff like that?
Do you see a sane frequency reading from the MAF?
Something like 2500-3000Hz?
Anybody else getting gibberish opening the file
attached?
decreased the min pulse limit and stuff like that?
Do you see a sane frequency reading from the MAF?
Something like 2500-3000Hz?
Anybody else getting gibberish opening the file
attached?
It seems to be working on the HP Tuners forum.........
http://www.hptuners.com/forum/showthread.php?t=11148
http://www.hptuners.com/forum/showthread.php?t=11148
Well I guess I'll reply to my own post and hope I can help out anyone that ever has this problem. First I put back my 75mm MAF back on and fixed my IFR, scaled down my offset table, scaled down my minumum injector pulse table. Started the car and all is well. Next, I put the 85mm MAF on, bumped up my RAF and tried a truck table, no good, tried a Z06 table, no good, used a Holden MAF table, BINGO we have a winner. The idle was still a little hesitant, but got it under control by messing with the idle set screw. Next is to do some logging and get her back on the dyno............
I know I need a wideband, but I don't and now I got it to idle, but it is really rich and really slugish, bogs, and surges big time when driving. I only took a short drive since it feels like crap and just need some help to get it moving a little better before I take it to the dyno. Here is the recent changes......
http://www.hptuners.com/forum/showth...0733#post80733
http://www.hptuners.com/forum/showth...0733#post80733
