U1 looks like a fog light connector. U2 doesn't look familiar to me in that area.. but I'm an 03 guy.

The car I have is one of those oddball 1996 Bonneville SE (not SSEi) Supercharged that came out of the factory with an L67 and 4t60E. I did a lot of work to the motor (Diamond pistons, 20/1000 bore, milled heads, comp cams cam, springs, yella terra rockers, LS1 rods, reduced pulley, SLP headers).

Since I was only 7 bolts and 2 drive shafts away from taking out the tranny, I decided to go for rebuilding that too, despite never having a problem with it for over 200,000 miles. But the more I read, the more conflicting reports that the 65E was better than the 60E or the 60 was better. So just to be on the safe side I pulled a wiring harness and computer off a 98 bonneville N/A from a junkyard and am pricing out a used 4t65e HD, just to be on the safe side.

Since my other thread in performance hasn't gotten too much feedback, which is going to be less headache in the short term and long term?

Reasons to stay with the 60:
I have pretty much all the parts, just need to source a decent overhaul kit
Not too much guesswork with the computer

Reasons to move to the 65
Stronger than the 60 (?)

A 1996 SE with an L67 mated to a 60-E? I'd love to see that RPO sticker.

Ok, PCM wise, what are you putting in? A 98 PCM?

Sure, unless I can keep the 96 PCM (doubtful)

Where can I find the RPO sticker?

By sure I mean yes, I pulled out a 98 PCM from the junkyard yesterday

For tuning purposes, stick with the 98. HPTuners supports 97 and up.

The RPO sticker should be on the spare tire plastic cover. It'* a white label with a bunch of 3 letter/numbers on it.

Hi guys..just saw this again.

V1 has a plastic vac line that connects to the map sensor on teh back of the supercharger
V2 Connect to boost soleniods X5
V3 Connect to boost actuator V10
V4 Fuel pressure regulator connect to V11
V5 Connect to large hose on brake vaccum booster
V6 This connects to the hose that runs over to the passenger side by the main harness connector. labeled B4 and H1. Connect whichever is closest to V6 then the other one connects by the main harness at the firewall.
V7 Plug this. Would have fed vacuum to the 4T60 trans
V8 Evap purge connect to X8
V9 vacuum tree, connect to X7
V10 BCS, connect to V3
V11 FPR connect to V4

X2 goes to the charcoal evap emissions canister in the front driverside fender.
X5 connect to V2
X6 harness connector for BCS
X7 Connect to V9
X8 connect to Evap V8
X9 evap electrical
X10 you should have a round plastic evap purge valve, connect this to the valve. Connect to X1, not the elbowed rubber piece, but the one you have chilling by itself as a nipple only.

D This is your knock sensor connector that connects to the knock sensor extension pigtail, you have the extension harness and main harness connector labeled F1/F2/D2 Connect them together and then to the knock sensor.

V1 and V2 connect to the fans.

Thanks Boosty I appreciate it.

Mike what did you learn from my RPO codes?

First time for everything eh? Yup, your car was born with a L67 mated to a 4T60-E 2.93 FD trans.

I could go on with more details, but punching in those RPO'* one at a time is a tedious task. Just Google "RPO Lookup".