Anything I need to know before Mass Air swap?

[Chris_H]

Ok I have my mass air conversion sitting here in the room waiting to go in. I have a set of instructions for the install, but is there anything I should know about before I try to do this? Any little tricks or hints that the instructions probably won't tell me? I plan on doing this either this week or the following week. Just looking for some advice from people who have done this before. Thanks in advance for the help.

Chris

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1987 LX, rebuilt 306, Mac shorty headers 1 5/8, 2 1/2" Mac off road h-pipe, 2 1/2" 2 Chamber Flowmasters cat-back, Mac underdrive pullies, 65mm Throttle Body/Spacer, 3.55, K&N, Tremec 3550, King Cobra Clutch, Steeda Tri-Ax, Autometer gauges, White face gauges, blue silicone radiator hoses, Steeda Clutch Adjuster Kit.
Best times:
2.331 60ft, 9.966 @ 71.069 1/8 mile, 15.491 @ 91.846 1/4 mile at 4000 ft. elevation on street tires

[joe4speed]

I know that after I did mine, my car wouldn't do the KOER test. The new computer required that you have the clutch pedal pushed in while you ran the test! Good luck... it's not a hard swap, but go slow and make sure you hook all the wires up to the right places!
Let us know how it goes!

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Joe!
1988 GT, 167,000 miles!!! 13.58@105mph Check out my listing! Click here! Or my website:
www.joe4speed.com
1999 Ninja ZX-6R 10.32@135mph!
1993 Olds Eighty Eight LSS 16.40@88.8mph

[Chris_H]

thanks Joe, anybody else have any hints before I get to this? Would like to do it tomorrow if possible. Just want to know what I am getting myself into here.

Chris

[LX XLR8R]

the Pro-m mass air setup is cake to install..instructions are good if thats the one ur using..after the swap my car ran better with changing out of the MAP sensor to the newer style BAP sensor..most people just loose the vaccum line from the intake to the MAP but mine didnt run right till i changed it to a BAP..

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1987 black notch(ex 4 banger)
DSS 306 w/ main support...Elderbrock 6028 heads..gt-40 intake..24# injectors...70 mm tb..77 pro-m...accel 300+..mac full legnth..tremec w/ pro5oh...full MAC exhaust,off road h-pipe,long tubes, catback...ron davis radiator..subframes, control arms...CFDF II..o yea holley FPR sucks..dont buy one..
AIM=onesillynotch

[Chris_H]

Ok LX you just lost me on the BAP/MAP sensor and the vaccum line. I have the stock conversion, but they came with the Pro-M instructions. I just don't want to get into the middle of this and find out I did something wrong that I can't fix. Thanx for the inputs so far.

Chris

[joe4speed]

I still have my map sensor and it runs fine after 10,000 miles on the mass air computer. I just unhooked the vaccuum and pluged it.

Ok LX you just lost me on the BAP/MAP sensor and the vaccum line.

If you look on your firewall on the drivers side of the engine compartment, you'll see a black rectangular sensor with a vaccuum hose and an electronic connection. Thats the MAP (manifold absolute pressure) sensor. The mass air cars got rid of that and put in a BAP (Barometric absolute pressure) sensor. They say that when you do the swap, just unhook the vaccuum hose to it and it will measure barometric pressure instead of manifold pressure.

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Joe!
1988 GT, 167,000 miles!!! 13.58@105mph Check out my listing! Click here! Or my website:
www.joe4speed.com
1999 Ninja ZX-6R 10.32@135mph!
1993 Olds Eighty Eight LSS 16.40@88.8mph

[Chris_H]

Ok, so the MAP sensor should be just a single vaccum line, not the vaccum tree thats on the driverside firewall right? Should I go ahead and disconnect it and plug it up? What would involve swapping it out to a BAP sensor? Once again I appreciate your help so far. Just trying to learn as much as I can before I do this.

Chris

[LX XLR8R]

it is only 2 bolts to take it out..it is located right behind the intake on the firewall and like jl1314 said it has one vaccum line and one wire plug going to it..
now just disconnecting the MAP sensor and leaving it should make it a BAP sensor but my car didnt idle right till i swapped it and i know another that did the same..so try just disconecting it at first..if no luck then just get a BAP from a junkyard or Ford

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1987 black notch(ex 4 banger)
DSS 306 w/ main support...Elderbrock 6028 heads..gt-40 intake..24# injectors...70 mm tb..77 pro-m...accel 300+..mac full legnth..tremec w/ pro5oh...full MAC exhaust,off road h-pipe,long tubes, catback...ron davis radiator..subframes, control arms...CFDF II..o yea holley FPR sucks..dont buy one..
AIM=onesillynotch

[Chris_H]

Great, thanx a lot LX. I appreciate your help and JL1314's help. Now if I can just find the time to do this! I'll let you know how it goes.

Chris