I have a 91 tbi 305 car. The vats system is throwing a fit. I have tried all kinds of things via info on this forum. Has anyone tried using an aftermarket alarm bypass to fix the issue?

 

what is it doing?

 

Vats isnt allowing injector to pulse. Bypassed the starter relay, new igntion tumbler, starter. You name it, ive tried it lol.

 

what i did because my car can with the wrong type ignition is under the hood by the relays on driver side firewall is the wiring harness. i jumped the small orange wire to the large pink wire. no mine works. i didnt cut them just removed enough shielding frome them to twist a wire end around them. then taped the ends. but thats just me. mine was a backet case

 

Ill run out and look but i dont remeber seeing a pink wire

 

its in the big wire loom. might have to dig for them. i did. it worked on mine

 

Ok found the pink. Which orange wire?off the fuel pump relay?

 

That'll fix it

 

i only found one orange wire in mine but it got my pump going and injectors. but like i said. thats just my car. might not on urs. who knows

 

I wish lol. Been beating my head against the wall for 3 days now. Im a locomotive mechanic, they are just 2 stroke diesels. Nothing to them

 

Oil pressure switch has to detect pressure before it enables the injector pulse

 

Ya when cranking im getting oil pressure

 

Back to my orignal question though. Has anyone used a remote starter bypass module to get it running

 

Or know anyone near st louis,mo that will flash the pcm

 

You do not need a "remote starter bypass module" to get around the vats. The stereo shops that install remote starters use a resistor to jumper the vats system. You can buy a pack of about 14 that covers all the GM vats systems. Measure your key chip resistance with an ohm meter to find out which resistor you will need. After that ,take off the drivers side knee panel under the steering column. Locate the 2 white wires inside of an orange insulating sheathe. There will be a small white plastic plug connector at the end. Cut the plug end closest to the steering column and solder the resistor across those 2 wires on that end. This should solve your problem. Costs about $8 and 15 minutes of your time.

 

Does your car have a distributor? Replace the ignition module, that is what sends signal to injectors to pulse.

 

I tried that on the vehicle I'm working on. It kept the check engine light and the air bag light on. I think I'm lucky that I had it air bags disabled.
My vehicle has a distributor in it. If it would have coil packs that might work.

 

Here's something to consider =
https://www.thirdgen.org/forums/elec...ing-tuned.html

 

Where is this tuned performance located?

 

In Colorado,
You send him your chip, he does the magic, and send it back. It took a week to do mine.

Tuned is great, Check him out.

 

Yes, I wish I had used Tuned Performance in the beginning. It would have saved me a ton of trouble.

 

Anyone know anyone near st Louis?

 

Send me a pm if you want to go with a prom with vats disabled !