blue90z28

During my day of searching to find out how to get my car to start I tried the resister nothing was working vats box fried. So I finally I tried an ecm from a not vats vehicle jumped the starter relay and sure enough fired right up. So a simple solution jump the starter relay and plug in a non vats ecu its a temporary fix if Ur broke I wouldn't recommend doing it for long as anyone can steal your car

sheltonw3

Not unless you are able to throw in under the dash a on/off switch*...I nkow of few guys who did this to get by!

vetteoz

iTrader: (13)

You only need the memcal ( chip ) from inside the ECM ; not the whole ECM

blue90z28

What's a memcal chip sorry new to electronics

vetteoz

iTrader: (13)

The chip inside the computer (ECM )
One computer may be used for many different cars ; only the info (tune ) on the memcal inside changes to suit whatever car the computer is in

Memcal = the blue thing in pic below

blue90z28

So I can swap that from my non vats ecm to my vats ecm and it will run

Tuned Performance

iTrader: (92)

The programing is not in the ecm, but in the memcal The blue calibration chip.

blue90z28

I don't have that maybe cause I have tbi

Six_Shooter

iTrader: (2)

TBI uses two separate chips, a PROM or EPROM in a black plastic carrier and a smaller NETRES in a similar black plastic carrier. Some TBI ECMS do not have a removable NETRES, and will only have the PROM or EPROM in a black plastic carrier.

Tuned Performance

iTrader: (92)

The letters on the prom will still be helpful identifying your problem just. Verify you have vats enabled on the prom. But since you have the code 46 showing I'm sure thats what's cutting your injector pulse.

blue90z28

Any pics of it

Tuned Performance

iTrader: (92)

blue90z28

Still ran the same after switching it

Tuned Performance

iTrader: (92)

I THOUGHT YOU HAD A NO START CONDITION ?

blue90z28

Ya thats in the ecu I switched the black chip into it from 305 still runs like 350 chip

Tuned Performance

iTrader: (92)

Not bad you added 45 CID with a prom swap.

blue90z28

No meant it gets to much gas 350 tune

Tuned Performance

iTrader: (92)

are you sure your using the correct prom in the 1227746 ecm ? is the mill blinking fast ? Any history you can shed on this ? you went from a vats question to running rich Like lhm or leaking injectors are or bad cts.

blue90z28

It was fine before ecm swap n yeah mill was blinking fast

Tuned Performance

iTrader: (92)

sounds like you are in lhm with the wrong ecm. can you read the letters off the prom in that ecm

blue90z28

Top is black no numbers

Tuned Performance

iTrader: (92)

Sounds like the wrong ecm dome thing from 85 or maybe 86 . The realy proms were otp and had 3 to 4 letter typed real small on the prom.

blue90z28

Lol its out of a 93 3500 4x4 all I had what would I need to get to make my car run how it did before an ecm that has to enable fuel via vats is out of the question they messed that up when they tried to steal car

Tuned Performance

iTrader: (92)

Have the vats programed out of a prom or install a modulator.

http://www.ebay.com/itm/GM-VATS-or-PASSkey-II-Bypass-Module-For-LS1-and-LT1-/281064956739?pt=Motors_Car_Truck_Parts_Accessories&hash=item4170c6e343&vxp=mtr

blue90z28

Alright thanks I'm gonna get it tuned out 9mpg sucks