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Hi everyone. I have a very old but brand new fast grey box I was thinking of installing on the buick. There seems to be no lockup control in the fast grey box program, I thought there was but I think thats XFI the newer version. Would a person just jump the ALDL port to a switch when desired...

@salvageV6 Do you know if all limited's came with lower chrome trim ? and if they did you know where I can buy repoduction...

Ya that’s what I thought. I found another one on a auction site with black wheels…I was second guessing myself lol Thanks @626gn

Just lookin for better insight on regal limted with turbo cars, is this car soposed to have black wheels? Picked the car up last year,car has the right wheel style but the inside faces are paint black like 84-85 gn wheel. Cant find anything online. See pics for refrance! Thanks everyone.

4800 feet! Come to think of it I never noticed when I did the original tune a while back. I was just reading the fast instructions recently and they state 100kpa. Good catch! I was maybe blaming this issue with another one I have then lol I not able to drive faster then 10 mph as the car has...

Hi everyone, the Buick the last few years has been running amazing, then all of sudden when I hooked up the laptop to make an adjustment I noticed with the key on MAP only reads 89 kpa . had a spare brand new MAP sensor that I changed out for fun and still no difference. We are talking an old...

Thanks tons for this!

Of course all of this is in a hot air car...thats my problem. I know there is probably only a hand of us that have done this swap.

Im using the stock electric fan and relays that come on the 1987 harness. Thanks

Thanks for the info, How would you go about turning the fan on if the car wasn't wired for it? I would like to wire it as factory as possible. THANKS!!!

This is a hot air to intercooler conversion, no wire in the bulkhead connector to have the rad fans turn on. Any ideas, I found something close on this forum about hooking up a single wire to the ecu harness side is this true? Any help and i would be thankful!!!

Thanks for all your help guys!

Anyone out there know where i can buy a new throttle cable? Cant seem to find one at auto value, napa, rock auto gm dealership and so on... Is there another cable I can use thats interchangeable, maybe 90's car or truck? Thanks any help would be much appreciated!

Its s a bosch style regulator. Doesn't matter where the fuel level is when it happens. Hot wire pump relay is new last week. Static pressure is about 20 mins. Thanks for the feed back! makes me think back and check 3 times on things. I want to add car was parked for 4 years with a 1/4 tank...

Lean fuel pressure problem. Weird thing is, it only does it once in while. I could drive the hell out of the car say for a few hours... stuck in traffic... You know the drill. Then all of a sudden step on the gas and the air fuel gauge drop off the map and the fuel pressure gauge goes 60...

Is it absolutely necessary to have a 1986 harness to do this swap or can you use the 1985 harness? Specially since my car is already converted to 1986 ECU. Are we talking length being the problem for the harness or what?

thanks tons!

Hey there wondering if anybody has converted from (MAF) mass air flow sensor to (MAP) manifold absolute pressure sensor is this possible??? Pretty sure i would need to do fast xfi? Any pointers in this and i would be grateful. Thanks