Quick question guys, under Flags and under 4l80e Parameter there are like 5 flags. They say, Filter 4wd Low input, Filter cruise control input, Filter A/C input, Filter Shifter pattern input and...

Im using the original 90 suburban harness that was in the truck. I seen tge 1619427 pcm has a ignition output on it. Thats what my electrical diagnosis book says. Could i use that?

Also so my...

On ebay somebody makes a nice chromed block off plate for the tbi. Comes woth plate, screws and gasket. I think i paid somewhere between 10-20 bucks for it. Works perfect. And i bought a cheap...

Where can i find this? In the ingition harness?

Found what my problem was and it was literally a 30 second fix. Instead of putting the tranny power feed on a hot all the time, i feed it with an ignition wire. That was what was tripping the code 81...

I actually forgot to take my VSSB out of my 94 suburbab before i junked it. So now im going to have to buy one. Do you know the 3 letter code or part number for the correct VSSB that i need? But...

I attached a log file of the truck while its sitting in park. If anybody could please take a quick look at it, I would appreciate it very much.

Sorry that im all over the place guys. I think im having a VSS issue. Im a little confused about it because there is so much misinformation out there about it. Now pin F12 controls the transmission...

0 ohms when i put the probes between pin e8 and e9, the ecm to shift solenoid wires. Is that normal. I would think they would only be on the same circuit when the are grounded and on. I am replaci g...

I see 0 ohms at the pcm plug. For some reason the pcm is not grounding the solenoids. Do you think it could be a faulty pcm? It looks like the pcm was already replaced with a used one by the previous...

I think i may have found something that tells me something. When i measure reaistance between 1-2 solenoid and 2-3 solenoid i get a short(one lead on yellow/black wire and one lead on the light green...

The engine and tranny came out of my 94 suburban which ran and drove fine right before i pulled them. No problems at all. Trans was rebuilt by previous owner before me( receipt confirmed). I did...

I rechecked my wiring and pinouts 10x's. And i just checked again just to be 100 percent sure, Yellow/black is in E8 and light green is E9. That is a good possibility that inside has the crossed. I...

hey guys, I really need someones help with this. I am literally at a dead end with this. Just did a 454/4l80e swap to my 90 suburban and did a 7747(90 sub) to 7427(94 sub). Everything is running...

Hey guys, i just installed dual fans into my 90 suburban which i just swapped my 94 454/4l80e. Running 16197427 with BMHM bin. Im having a problem with the fan code. I cant get the fans to activate...

Also my IAC counts are pretty high. It's at about 80 counts at idle and 160 when im going down the road

Well the cam has a 107* lobe separation. It's a little radical. I do change the VE settings and im getting no feedback of BLM's moving after tuning. It is running rich especially when I decel at...

Hey guys im having a problem tuning my TBI in my 94 suburban BB. I just put 063 mark IV heads on it and a new cam, 227 int and 241 ext at .050 and 0.498/0.483 lift. I am finally in my tuning stage...