VATS 95 camaro 3.4 L Fuel ENABLE Wire and etc Help

[pocket-rocket]

There's also C23 on the blue PCM connector too. I'm not sure which would be easier to do, but if the PCM is more accessible than the theft box...

[kcscott11]

i have to say i thought of this last idea so many times, but never heard anyone speak of it, is the pcm the one under the hood on the passenger side? if so... there are 3 connectors on it, which one would i have too find the wire on?

[kcscott11]

oh i suppose the blue one.... the car is at my shop right now and im at home, but i suppose there is only one blue one on it...

[pocket-rocket]

Well, since the diagram I posted says "PCM Connector "C" (blue), I would start with the blue one Yes, there are 3 wires going into the PCM, and it should probably be the biggest module under the hood.

Now since ForcedFirebirds picture (shown in thread: http://60degreev6.com/forum/showthre...maro-OBD1-swap) shows it on the passenger side strut tower, in a 93 I imagine yours is in the same place.



EDIT: Bah, you beat me to it, lol. Yeah, there is only going to be one blue connector.

[kcscott11]

ok, my module didnt make it run. i checked the voltage on pin 23 on the blue connector going to the pcm, it is indeed getting 2.5 volts. soooo why am i not getting gas? it starts runs for 1-5 seconds and dies. there seems to be no reason for it...

[pocket-rocket]

Have you checked your fuel pressure? Does it have gas in it? Does the pump give a decent amount of volume of fuel flow? It almost sounds like it's not getting enough fuel. It could be something as simple as a filter.

[kcscott11]

it has gas! i wanted to check the fuel pressure, but for the life of me i cant separate the fuel lines under the hood.... does it take a special tool? where do i get it? I need to check the fuel filter... is it just under the car somewhere along the frame or what?

[pocket-rocket]

The filter should be back by the tank somewhere. And as for testing fuel pressure, you need a fuel injection fuel pressure tester like this one:

$42 @ Advance

http://shop.advanceautoparts.com/webapp/wcs/stores/servlet/product_FUEL-PRESSURE-TESTER-Actron_9030328-P_N3388_T|GRP2018____

Same thing:

http://www.actron.com/product_detail.php?pid=16174

There should be what looks like a big tire valve stem sticking up off of the fuel rail. That tester just screws on that schrader valve.

[kcscott11]

ok, even if the vats is the issue, the pump should pressurize, right?

[kcscott11]

i wanted to know how to disconnect the line so i could check volume in stead of pressure, because i dont have the tester available at the second.

[pocket-rocket]

ok, even if the vats is the issue, the pump should pressurize, right?

That I'm not sure on. I imagine it would prime at first that way if it does recieve a VATS signal it will start without a hickup, but again, I'm not positive on that. And a 95 probably needs quick disconnect tools to remove the lines. Those are fairly cheap at the parts store (less than $10 for the multi-tool one with like 4 sizes, IIRC).

[kcscott11]

also what psi am i looking for if its working good?

[pocket-rocket]

Alldata says 41-47 PSI with engine off and ignition on with the fuel pump running. Since you lose almost all of the pressure hooking the gauge up, I normally cycle the key a couple times (with a small pause in off position) to make sure I get the right pressure reading.

[kcscott11]

hmm i dont have the pressure tester yet, but i found the valve and pushed it and it sprayed the first time, then it just kind of drained out a bit... i turned the key off and back on, and only got it to drain a bit each time afterwards, perhaps the pump is pumping slow or the fuel filter is clogged up?

[robertisaar]

do the F-cars with the 3.4 have a priming connector like the OBD1 Ws? that would keep the pump running long enough...