Looking for some Help please!
Recently did the LS swap on my 86 Gmc Swb. 5.3/ 4L60E out of a 2000 gmc. Only mods are Long tubes/ Air intake. Been learning how to tune. I've done a couple things to make it wayy better than the stock tune but still got some issues and getting a little frustrated. I'm hoping yall can take a look at my tune and scan and give me some pointers.
Issues I'm having:
- Won't shift at WOT. (Pretty sure this is not my shift scheduling/rpm because I did have it shifting good at WOT, but started messing with VE, PE, other stuff and now having the issue). Dosen't bang rev limiter, just loses power and dosent shift
- o2 sensor voltages are super low when WOT ( I feel like this might be the reason it wont shift at WOT because its so lean)
- Ltft's still very positive. I've done the procedure of disabling maf, logging Ltft's, copying LTFT% into VE table, smoothing, a couple times. Seemed to help a little.
I feel like it needs more fuel put don't know where to put it in.
PE EQ Ratio is 1.174. (14.68/12.5)
I know I should be tuning with a wideband but money is tight at the moment.
Thanks in advance.