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Napa has 2 different sensor per year. Just for reference one is $114 and the other is $250. I looked up '88 and '90. The $250 sensor has the same product code for both '88 and '90. But the $114 sensor has a different product code from '87 and '90.

Are TPS sensors from 87-92 turbo all the same?

Boost leak? Vacuum leak? Codes?

Your going to have to weld in a bung anyways considering the factory 02 sensor uses a 2 bolt flange instead of threads like the wideband. That is assuming you have a factory downpipe of an aftermarket downpipe without a bung welded in.

No you need to weld in another bung for the wideband.

I'm having problems getting my car to cruise correctly with MAFTPRO, Rogue_Ant from a MAFTPRO forum is helping me diagnose why. Well anyways he told me to unplug the 02, change some settings and see how it runs. I unplugged the 02 and to my surprise the CEL didnt come on. A problem with my...

I was told to unplug the 02 sensor and change the PT tracking settings by Rogue_ant on FullThrottleTech. I did so and my CEL doesnt come on at all. Using PT tracking the AFRs are very erratic accelerating and when I start to maintain speed they are <10AFR and the car starts bucking. I plugged...

My TPS values at idle are at about ~.15V I believe and full throttle is at ~3.5V. Adjust it?

Ok I completely reinstalled TunerPro. I went out and logged a cruise to a buddies house. I cant upload BIN files to SM but I can upload ADL. Whats your email so I can send you my BIN? Or is another way to post BINS?

I played with the mainscale some more today. It cruises fine most of the time, then sometimes it will richen up and stick around 10-11AFR, I usually get so frustrated by looking at it and the car bucking back and forth I just downshift and step on it. After that it usually starts being a...

Im assuming you still have the stock gauges. Dont use those for any reference, they are very innaccurate! In my buddies mk3 the Autometer gauge says 10psi and the stock gauge says 6psi and only starts rising once the turbo is actually at 10psi.

www.fullthrottletech.com post here. This is the main support forum for MAFTPRO. And read through a few of these threads. http://www.supramania.com/forums/showthread.php?t=38780

Ok i will try pulling more fuel from the mainscale and playing it more. Things that really frustrates me is sometimes it works awesome, then others its like im back in square 1. For example today after work I was heading to my friends house and the AFRs were really clean, 14.7-15.2AFR...

My buddy has got the same exact one on his mk3. Works fine. Its mislabeled though, we had to install it "backwards" for it to actually control and hold boost.

I cant get the gauges and the computer to line up. I even tried grounding it all straight to the battery. Didnt improve anything. Aux1 voltage is at 0.00 sometimes, then others its flickering between .8x-.9x and sometimes in 1.xx. I reflashed to 4.8 aswell. Accelerating AFRs are...

By not the same lug you mean forsay a beam of metal with 2 bolts 1" from each other, wideband ground on one and the maftpro ground on the other? Aux1 voltage is pegged 0.00V. Ill fix the grounds now and reflash to 4.8.

For the MAFTPRO ground; its spliced into the ECU harness and through a kill switch. I thought the MAFTPRO wideband ground had to be in the same place as the wideband ground? Should I ground all of them to the same place? Got the car cruising pretty good earlier. Then on the way home from...

Look up those numbers on a periodic table.

Im using just the AF User tables at the moment. VE tables are honestly a little bit intimidating. But once learned about the (CRTL+L) its not as much anymore. But I haven't messed with them at all. But using the VE tables really is not going to work well cause I ran into another problem. We...