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Topic: Mass Air installation failure... (Read 2623 times) previous topic - next topic

Mass Air installation failure...

I did the mas air conversion on my spare harness.Took my time,double checked everyhting,soldered the wires,heat shrink on top of that.I installed the harness today (along with the mass air meter of course),installed everything down to the last screw,turned the key,and the engine turned,but wouldn't start.I tried again,same thing.Soooo,I re-installed everything back the way it was and removed the converted harness.I need the car.Any ideas what to look for,or what may be keeping the car from starting?This sucks.I need to get the Mass Air going before the E303 cam swap.

I didn't hook up the fuel pump wire.I had read it wasn't necessary.I did swap two wites,installed two wires,and spliced in the hot and ground.This sucks.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Mass Air installation failure...

Reply #1 –
Follow the writeup's on the net to the tee and don't skip any wires.

Mass Air installation failure...

Reply #2 –
Bubba,You quit to soon! Send ya pm.
Old Grey Cat to this.88 Cat, 5.0 HO, CW mounts, mass air, CI custom cam, afr165's, Tmoss worked cobra intake, BBK shorty's,off road h pipe, magnaflow ex. T-5,spec stage 2 clutch, 8.8 373 TC trac loc, che ajustables with bullits on the rear. 11" brakes up front. +

Mass Air installation failure...

Reply #3 –
i didn't quit,I had to back to stock to use the car.I only skipped the fuel pump wire,which,I was told was no big deal.I will try this again soon.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Mass Air installation failure...

Reply #4 –
I'm glad i paid someone to do that and they got it right the 1st time.

Better luck 2nd time around on the install.
[SIGPIC][/SIGPIC]


http://www.cardomain.com/id/Carpimp1987
1987 T-Bird AEROBIRD-GT had many many mods but is now totaled and is the car that made me want to start customizing everything all over again.
1988 T-Bird 5.0 HO DD/Sleeper/next project car :birdsmily:
1988 Cougar XR7 5.0 HO Vortech Supercharged being bulit right now :cougarsmily:

Mass Air installation failure...

Reply #5 –
Did it try to start at all?Maybe you got a bum computer?
Old Grey Cat to this.88 Cat, 5.0 HO, CW mounts, mass air, CI custom cam, afr165's, Tmoss worked cobra intake, BBK shorty's,off road h pipe, magnaflow ex. T-5,spec stage 2 clutch, 8.8 373 TC trac loc, che ajustables with bullits on the rear. 11" brakes up front. +

Mass Air installation failure...

Reply #6 –
It was turning,but not starting.How do I check the computer?Is there a way?Looking back,I honostly can't remember if the fual pump primed or not when I turned the key.I was so hot and cranky,I had my fill by that point.I hope the computer is good.Those are expensive (The A9P).
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Mass Air installation failure...

Reply #7 –
Did you ever figure out if you had an 88 or 87 harness Vinnie?
One 88

Mass Air installation failure...

Reply #8 –
The harness I swapped in looked just like the one I'm back to using now (the '88 harness).Same everything,plugs and all.I wonder if the wire to the fuel pump relay needed to be hooked up.I was told it didn't matter,but maybe it does.I'll try again when i have the time.I just don't know if I want to modify my factory harness.If something goes wrong,like yesterday,I'm without a car.I need to make sure that it's going to work right.I use this car everyday.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Mass Air installation failure...

Reply #9 –
The wire is a moot point.  It will give you a code, but will work without issue.  I still have yet to hook up that wire on mine 18 months later.  Troll the Stang boards, maybe someone who has done a carb conversion has a harness in their shed.....
-- 05 Mustang GT-Whipplecharged !!
--87 5.0 Trick Flow Heads & Intake - Custom Cam - Many other goodies...3100Lbs...Low12's!

Mass Air installation failure...

Reply #10 –
I may take the converted harness apart and triple check everything.Man,this has bothered me all day.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Mass Air installation failure...

Reply #11 –
Even if the maf is bad or not hooked right it should attemp to start.If and when you hook it back up try taking codes on the computer just to see if you can communicate with it.
Old Grey Cat to this.88 Cat, 5.0 HO, CW mounts, mass air, CI custom cam, afr165's, Tmoss worked cobra intake, BBK shorty's,off road h pipe, magnaflow ex. T-5,spec stage 2 clutch, 8.8 373 TC trac loc, che ajustables with bullits on the rear. 11" brakes up front. +

Mass Air installation failure...

Reply #12 –
I'll try.I'm looking for a replacement harness to build another one with the conversion kit I bought.I don't want to risk mesing up the one good harness I have.I told you this was worrying me,now you see why.If the car wasn't needed,then no big deal.I use it everyday.I am hoping to either find another 88 Thunderbird/Cougar harness,or,an '89 Mustang GT harness.I'm actively lookig for either one right now.I hate doing this kind of stuff.Engine work,suspension,bodywork,interior work,all of that is great.Wiring like this,never works right the first time.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Mass Air installation failure...

Reply #13 –
Did you switch the two thermactor wires? I don't know if it would stop it from starting if you didn't.
If your using the 88 harness it would need to be switched.
Old Grey Cat to this.88 Cat, 5.0 HO, CW mounts, mass air, CI custom cam, afr165's, Tmoss worked cobra intake, BBK shorty's,off road h pipe, magnaflow ex. T-5,spec stage 2 clutch, 8.8 373 TC trac loc, che ajustables with bullits on the rear. 11" brakes up front. +

Mass Air installation failure...

Reply #14 –
None of the changes necessary for mass air, will keep it from running... Unless something is wired incorrectly...

You can swap to the Mass Air EEC with the stock harness, and it will run if the computer is good... No not like it should, but it WILL run...