VPC/SAFC Setup Problem.... Please Help

[supraguy31]

I have it installed and Its running but for the Life of me, I can not get this thing to give me the correct A/F readings. At Idle and Everything set to 12 oclock on the VPC MY Air fuel readings on my Wideband are 10.3 to 10.5

Now I take the Idle Knob on the VPC and turn it to -14 which is the most that you can turn it too for lean Purposes Im reading 11.4 to 11.6

Turn the SAFC to -24 to try and lean everything out and at that setting, Its only reading 13.1 anything lower than that it starts to bog down. Problem with this is that I have no Acceloration. If I tap the throttle, It bogs and If I get through the Bogging out, I can hold it at 2400RPM range and the A/F level drops to 10.3

What the heck is going on here. Can someone Please tell me what Im doing wrong. I need to get this thing out and running on the road my Monday. Any Advice, Please call my cell at 505-442-9793

Robert

 

[MKIIINA]

Just to add in guys. yes the dip switchs are set correctly and the chip is verified as being the correct 550 chip.

 

[dbsupra90]

do you have it set up afc then vpc or vpc then afc?

 

[supraguy31]

VPC then SAFC I think. I connected the VPC harness and then Wired the SAFC into the Actual VPC Harness. Tell me if I did it uncorrectly

 

[suprashy]

I connected the VPC harness and then Wired the SAFC into the Actual VPC Harness. Tell me if I did it uncorrectly

That's the way I did it. (thanks X-Man!). BUT IIRC, there is one SAFC wire that has to be connected directly to the ECU (I think it was the TPS signal, but not sure). could this be your problem?

Also, what fp are you running? Set a good base fp, then tune using your S-AFC. I've left my VPC knobs at 12 o clock, and I know others that have too, and our cars run like a gem. Good luck!