what does the 98 "S" computer need?

[North Maine]

I'm going to install my "F" intake soon even though my "F" computer is completely worthless and I need to use my "S" programing I have. If i leave the vacuum crap all hooked up to my EGR valve will the truck still think that it is doing EGR? even if the EGR valve isnt attached to the intake, or attached but with no EGR supply?

 

[matuva]

It should work.
While waiting to get my "F" GL4, I just plugged with a bolt the vacuum line to the EGR valve. The EGR valve was itself standing alone on the plenum just to block it.
The PCM was almost happy and never throw a code.
I've tried that on several truck with stock S PCM and that mod seem to work fine.

So, I believe you can put your F intake with no problem, let your EGR valve connected and sit on the side or just plug the vac line, both should work.

 

[North Maine]

Good deal, thats what I'm hoping for.

 

[gmctd]

PCM doesn't know the EGR valve from a Schrader valve - it does, however, know when the correct amount of vacuum is applied to the EGR by monitoring that sensor on the firewall...................

 

[Drewkeen]

I have a F code ECU if you want to buy one.

 

[North Maine]

how much?

 

[Turbine Doc]

I have a F code ECU if you want to buy one.

needs to be Theft deterrent capable for North Maine to use it what year is yours

 

[North Maine]

I think I'm going to be all set anyways, the Heath GL4 is on the horizon