Project Mustang Consolidation

[Russell]

Not much to report on the Terminator X install. I have been unplugging and not cutting. Was thinking I could use the harness on another car some day. I got the small vacuum can out of the fender well and the solenoids for the air pump valves. Started to pull the O2 harness to find it connects to the low oil sensor.

I would like to keep my factory oil pressure and temperature gauges working. The wires run through the main harness and I think the go to the black and grey connect on the driver's side firewall. I also need to figure out a stand alone A/C harness.

Would other Ford vehicles from this error have the same connections?

The Holley instructions say the Wide band O2 should be facing down. The bungs in my H-Pipe are up. What will happen if I use the existing bung? False readings? Shorted sensor life? How much is a replacement sensor?

Is one bank on the 5.0 known to be leaner than the other? I would like to put the O2 sensor on the leaner side.

[cstmwgn]

...Holley instructions say the Wide band O2 should be facing down. The bungs in my H-Pipe are up. What will happen if I use the existing bung? False readings? Shorted sensor life? How much is a replacement sensor?...

It is my understanding that they don't want condensation getting trapped in the O2 sensor. Mine are on the sides of the collectors and seem to be fine.

[Russell]

Got the O2 harness and passenger seat out yesterday. Tonight I changed the CTS and IAT. Then pulled the main harness through the firewall. Hooked up the TFI, injectors, IAT and CTS. So far it's going pretty good. Took a short video then my phone died. Hope to pull the power harness tomorrow.

https://youtu.be/4_4lffErVaY

[Russell]

I think I am making this harder than it should be. I was trying to not cut up my factory harness. I bought a box of wiring harness connectors off eBay it has most of the ones I will need and have been studying the factory wiring diagram trying to figure out what I need and what goes where. If I didn't want to keep the A/C water temp and oil pressure gauge it would be lot easier. I think the fuel pump power runs through the engine harness as well.

I have been thinking about going to the junkyard and looking at the other late 80's fords to see if there is a factory harness I can weed out. The smarter thing to do would be cut up the one I have.

[Russell]

I don't want to say how many hours I have looked at wiring diagrams. I think I figured out how it was wired and a way to get it going again. I have a few questions.

Ford powers the AC relay from the eec relay and both relays use same ground, is the Holley ok with that or should I add another relay.

The Holley instructions called for the coil to be powered from a relay. I didn't see on in the Ford diagram. Should I add one in? This based on a 1989 wiring harness / dash.

[DanStokes]

I always figure that it can't hurt to add more relays and/or more grounds. You should see the relays in the Volvo! So when in doubt, add!

Dan

[BBR]

I put our coil on a relay. It and the fuel pump relay are controlled by the same switch. Is it necessary? Probably not, because I can't think of any car I've ever owned that had a coil relay.

[Russell]

I have one sitting here, might as well put it in. Should I fuse or fuse link it?

[BBR]

Mine is just fused.

[Morijr]

Gentlemen, my MSD 6425 module has damaged the tachometer pulse output CISMD.

Someone has your number and knows if I can get it.

I already asked this question to the manufacturer but had no answer.

I appreciate any help.

[Russell]

I worked on the mustang alot this weekend. The family was out of town. I think the wiring for the engine/Holley is done. Got the upper intake back on. I still need to do the A/C and other I/O. I got the new O2 bungs welded in and did some repairs one the cat back. Next up is install the H-Pipe. Wide band O2 and fire. Hopefully this week I will be making noise!

[Russell]

Got it running a couple days ago. Drove it around the block tonight. Went well. It took it easy for the frist time out. Look forward to working out the tune and getting back to the track,. Will be neat to see what it runs,. Should be as close to an A B test as it gets (not counting weather)

[Russell]

I have been slowly playing with the tune. I switched from the hand held base tune to one that came with the software and I have been slowly leaning it out and adding a little timing here and there. I keep telling myself I need to get back on the sanding but it has not happened.

I hooked the new Dragweek/beachbum trailer to the mustang and hauled the weekly trash to the dump. Car did great seems like the extra load is less then when it's hooked to our 2001 Suburban?

Our County has rules that don't allow you to haul trash to the dump with an enclosed or tandem axle trailer with out a sticker. I assume it's to make the commercial guys pay a tipping fee. They dude working there would not let me throw away my two bags of kitchen trash away. I lost my cool. I am convinced he just wanted to be a butthole. That or our county doesn't hire people they can trust to make common sense decisions. I was going to take a picture of the car hooked to trailer. I was so hot I forgot to take the picture and pushed the trailer behind the shop.

[BBR]

Local govt can make you want to buy a tank and drive over a few buildings. I deal with them frequently. No common sense, they just check boxes on a form.

[DanStokes]

The sad part is that the guy at the dump is just doing what he was told to do. It's the person telling him what to do who needs his/her ears boxed. That said, there usually is some room for discretion but the guy you ran into wasn't willing (maybe was afraid to?) to discress.

Dan