If it starts and runs for a couple seconds and then dies, that is most likely the VATS/PASSKEY killing the engine so the vehicle can't be stolen. You need to have it disabled in the tune.
If it starts and runs for a couple seconds and then dies, that is most likely the VATS/PASSKEY killing the engine so the vehicle can't be stolen. You need to have it disabled in the tune.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Yep, yep.Originally Posted by RedHeartbeat
If it starts and runs for a couple seconds and then dies, that is most likely the VATS/PASSKEY killing the engine so the vehicle can't be stolen. You need to have it disabled in the tune.
You can use the booted or non-booted seal. Seems rather random which ones got which. Oreilly's usually stocks both. Glad to see you are making good progress.
Well I already had it tuned and that was supposed of been removed. I assume it was. But I did have the alternator checked at 2 different part places and they both say bad it is only giving up about 4 amps. But one concern was running straight manifolds with no down pipe or anything so I built some brackets to bolt on to the manifold to restrict the flow some and that helped. But as soon as it runs I am going to go have exhaust work done from manifold back just have to pick out some mufflers.
Hey what are you doing abt your power steering?? Im using a whole set up out of a vette and the pump has only one hose coming out of it. Im kinda lost on what to do abt that?
i just used the pump from the engine and the pressure line fits pretty nicely to the 1987 steering unit. i am just going to hook up the other line but i think it will all work together. You may have to try to gut a truck pump.
ok the engine transmission and ecm all came from the same truck so everything matches but the security thing would be an issue?If it starts and runs for a couple seconds and then dies, that is most likely the VATS/PASSKEY killing the engine so the vehicle can't be stolen. You need to have it disabled in the tune.
Yes, VAT/PASSKEY is related to the ignition key, switch, steering column and BCM sending the correct signal to the PCM.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Well no progress made over the past few months the Coast Guard has had me bouncing all over the map. But I am back in Tn. another 2 weeks and I can get back home and work on my truck some. I did get another computer for it as that seems to be why it will not stay running. Truck will fire run about 5-8 seconds and stumbles and falls if you try to accelerate it wants to stay alive but dies. I got the OBD2 port hooked up and it is reading codes for the drive by wire set up so I guess it was not properly deleted. The new computer is OEM for DBC, just have to get it tuned and maybe that will fix my problems.
well another ecm wont help if it hasnt had vats turned off either
'91 2WD RCSB
5.3l L59 DBW
4L80E
TR220 cam
RevMax 2800rpm stall converter
Schoenfeld LT Headers
Nelson tuned
My Truck Video - http://www.youtube.com/watch?v=Rw9y1...&feature=email
that is the point of getting another one is so that i can have it done to this one and the ECM i just got is DBC where the other is DBW (I am running DBC throttle body now) the guy who tuned the one that matches the engine was going to delete all DBW and program all DBC or so he said he would. But the new ECM was free so nothing much lost.
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