So I tried making some changes my tables based on what my wideband was telling and the car ran like crap. it would buck like crazy from 1500-2000 rpm and was almost undriveable. Also EE hack doesnt...

So in short ignore the hertz(left) side of the table and find the value closest to the value I want to edit in the afgs(right) side of the table. Sound right?


Sounds cool but sounds well beyond...

Hey everyone. Just got my dads lt1 swapped 87 trans am rebuilt and running again. Its got a 230/236 duration and .544/.555 lift cam with ported heads and a mail order tune from PCM for less. Im using...

The thing fricken rips. Its gonna be faster then my vortec motor with a cc503 cam. Cant wait to get a good tune on it and see what it can really do. Thanks for all your help really appreciate it!

FIGURED IT OUT!!!!!! The hot battery wire going to the starter had 3 inches of exposed wire, arcing most likely to the header.

Yeah, I didn't really expect the PCM to fix the problem just had to knock another piece out of the equation. You were right about how the tach was wired.

I watched the motor while having someone...

Borrowed a PCM from a friend today, didn't fix the problem...

Well I was given a tip to talk to a local guy named Ellis that is supposed to be really good with lt1's and it turns out hes been trying to figure out whats wrong with this stupid car too! The...

I think ill try changing the grounding location to the block and maybe adding another strap. Would it be a possibility that the single wire that's supporting the other 4 grounds is being overloaded?...

Do you know if the sensor grounds are grounded by the PCM? All 4 of my PCM grounds are grounded but neither of my two sensor grounds are...

Constant power is coming from the starter to pins 15 and 31 on the black connection. Ignition power is coming from the stock fuse block into an aftermarket fuse block and into Pin 30 on the black...

Whatever it is it has something to do with load I think, It will go WOT in neutral with no problem. Think it would be worth trying a different PCM? Also fuel pressure drops and rises from 40psi to...

I checked all the wiring nothing seems overly tight. I could only find 3 grounds. One that goes from the block to battery, another that goes from the block to the fender, and single wire that goes...

Looking at the graph that makes sense. Ill check it out. It would make as sense to why I can (extremely slowly!) roll into the throttle and it will keep pulling never gotten it wide open doing that...

They should be!

Anyway the fun starts at #465. Volts drop to .8 at #468. Seems like I was wide open for a lot longer then the log suggests.

[QUOTE=steveo;58783]add user parameter, type 'voltage' in the search field.

...or go to the main tab instead of the dash

...or go to graphing and click 'select element' and type 'voltage' in...

Thank you! Ive already got some logs with tunerpro. I didnt see anything in your program that displayed voltage. I feel that seeing the voltage in this case. Ill post my tunerpro log for now and ill...

Hi, everyone names Derek. got an 87 trans am with a heads/cam lt1 and t56 that a previous owner swapped in and its having some serious bucking issues only at WOT. The datalog shows some weird things...