Problem after FMIC install, need help

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Andrew 88	Problem after FMIC install, need help	Lead	[-]
Posts: 67 (02/24/2008 05:00 PM) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	Tags : None So I just finished installing my mp fmic when I started the car it started great idled fine 18-19 vac maybe a little high on the rpm at first then it dropped into normal. I started to pull it out of the garage and I stalled it and then I tried to re start it it had allot of trouble then it finally started same good idle but when I give it some gas in neutral it sputters then rev's up, it's has no problem when I disengage the clutch and get going, drives fine but if I just rev it, it sputters and has stalled once. the re start after the stall is difficult. when it sputters my buddy was saying that the exhaust turned from white to black, so I don't know if it's getting too much fuel or what. Any help would be appreciated At the same time I installed underdrives and a 5% blower pulley I used a impact to put the pulley on is that bad? Thanks Andrew
91scWOP		#1	[-]
Posts: 697 (02/24/2008 06:38 PM) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	you Should always put the pully's on with a wrench, tight as you can get..... putting them on with a impact gun I think will only cause you some trouble when you try to remove it down the road.... as for your other problem I don't think I can help you at this point.... Sorry JOE 90 Candy Blue SC Events Co-ordinator
vtgecgrs		#2	[-]
Posts: 1132 (02/24/2008 07:00 PM) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	Andrew what all do you have done to the car? You likely need a tune but I would think you have a vaccum leak. I had a tough time getting a good seal on my fmic due to the angle variance on the lower tube to the inlet plenum ( that bolts to the intake) John
vtgecgrs		#3	[-]
Posts: 1133 (02/24/2008 07:08 PM) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	Andrew what all do you have done to the car? You likely need a tune based on what I think you have installed but I would think you just have a vaccum leak. I had a tough time getting a good seal on my fmic due to the angle variance on the lower tube to the inlet plenum ( that bolts to the intake). I would not use and impact in futurs to install the pulley as they could stretch the threads and cause premature wear on the supercharger and as Joe said it will be tougher to remove the pulley down the road. I just destroyed a pulley using a puller to remove it. John
PJsBird		#4	[-]
Posts: 1534 (02/25/2008 03:38 AM) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	i was gonna say, sounds like a vacuum leak to me.... Preston's Blackbird -Custom Airbag Suspension -22" TIS 07 Wheels -Custom Black Interior -Lots Of Underhood Chrome -10% Overdrive Pully -Custom Mac Cold Air Intake -15% Tint
Andrew 88	Leak	#5	[-]
Posts: 68 (02/25/2008 06:18 PM) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	John, I have Kooks headers, 2.5-3-2.5 with a resonator no cats no mufflers,94 blower & TB 5% pulley,UD pulleys, mp fmic. I suspect I do need a tune, but the way that the rpm's drop to the point if almost stalling would make me think it's more then just a tuning issue. You never know tho. I re-tightened all the clamps, including breaking one, and the problem got ever so slightly better. I think I'm on the right track with the vacuum leak the only thing that puzzles me is that my vacuum is reading 19. When I turn the car off and try to restart it, I have to crank it a few time before it starts and when it dose it just clings to life then shoots up to almost 2krpm, when it's dropping I can rev it with no problems, it's when it settles blow 1k and then I give it some is when the rpm falls. I will double check all the angles on the tubes tomorrow. I forgot to include the facts that I deleted my a/c and I currently have Zero coolant in the engine could either of these be a culprit to my problem? Hey John do you have any rad's for sale for a 89 5 speed, I think I need one. Coolant is pissing out of somewhere in that area, but I will check to make sure it's the rad. let me know. Thanks for your help so far guy's -Andrew
vtgecgrs		#6	[-]
Posts: 1135 (02/25/2008 08:59 PM) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	What injectors do you have in the car? did you put the 36s in? if so a tune might be a problem. If not I thing the vacuum leak is the first thisng to collow through in. I should still have a rad here somewhere. the lack of coolant and ac should not cuase a problem. My car stumbled a bit right after the fmic and engine change and I stripped the clamps also. I now keep a few extras in the car. John
Andrew 88		#7	[-]
Posts: 70 (02/26/2008 06:52 PM) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	I still have the stock injectors, I will pursue the vac leak and let you know on the rad. Thanks Andrew
Pro SC		#8	[-]
Posts: 157 (02/27/2008 05:55 PM) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	Unhook the battery overnight and when you start it the next day let it idle for 30 minutes without touching the throttle. This will help the pcm to relearn the tune. 1988 Mustang GT Convertable,75k. 1994 T-Bird S/C 5.0 conversion, 1998 STX F-150 Flareside.
Andrew 88		#9	[-]
Posts: 71 (02/28/2008 07:14 PM) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	Pro SC, I'll give that a shot when I fix my coolant leak, sounds like it might help. Thanks. Andrew
wilson7002		#10	[-]
Posts: 1 (03/13/2008 07:28 AM) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	you blew a charge pipe or have a leaky inter cooler go check all your couplers and pipes if you have and welds on them also the intercooler . the car thinks its getting the boost so its adding the extra fuel that why you have smoke and driveability issues. its running pig rich, also this woulde cause it to stay in vacume also.

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Problem after FMIC install, need help

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