94 Droptop Posted May 18, 2013 Report Share Posted May 18, 2013 (edited) So I have a 94 mustang gt with a auto. Mods are, Cobra intakes, CAI, Ported stock heads, E303, 1.7 rockers, LT headers, o/r x pipe, flow 1 chambers and a bama chip. The car runs great. Idles perfect goes down the road fine. No odd smells or noises. Then 3 times while going down the highway maybe after 5 miles, it starts to miss on multipule cylinders, runs massively rich to the point there is black smoke coming out the back, Plugs were black, and it chokes and wont move. After it sits for along period it will run like normal again. One time I got it off the truck, started it and pulled in to my driveway WTF.So i replaced some parts, Plugs, coil, ignition control module, Full brand new distributor, coolant temp sensor, Mass air meter, and I also shut the tune off and put it back to stock. Started it up it up, idles fine, I let it idle for 30 mins in my driveway no troubles, drive it around my area local streets everything is fine. Take it work the next day and bam same spot almost it starts to crap out again... The only sensor I have not replaced on this car is the o2 sensors. I have them just havent put them on yet.The car has another problem that started at the same time. The battery light is on. I check the alt on the car running its putting out great amps and running at around the 14.25 like it should and the tester said the diodes were good. So i figured the battery was a little low from sitting for awhile. I put it on my battery tenderer, once fully charged I put it back in the car, fire it up and still a battery light. I can only guess that these two problems are related, I have checked the fuse under the hood its good.So im going to check the grounds, but if they are all good what could this be. If I wanted to add another just for ####s where should I add it? I have a battery relocation, with a ground from battery to frame in the rear, and 2 or 3 block to frames in the front.Any ideas are welcome. Thanks guys. Edited May 19, 2013 by 94 Droptop Link to comment Share on other sites More sharing options...
Schiffy Posted May 18, 2013 Report Share Posted May 18, 2013 My wife's old Honda did ALL of this. Come to find out, her computer was shot.Sent from my secretary!!! Link to comment Share on other sites More sharing options...
64bit_Tuning Posted May 18, 2013 Report Share Posted May 18, 2013 Take the Bama chip out, bet your problem goes away.Also, please don't use colored text. It raised bell with the mobile app. Link to comment Share on other sites More sharing options...
SniveTroll Posted May 18, 2013 Report Share Posted May 18, 2013 Wait whats the post aboot. I see nothing.Sent by smoke signals Link to comment Share on other sites More sharing options...
94 Droptop Posted May 19, 2013 Author Report Share Posted May 19, 2013 Sorry what color should I use? The black I can't see on my desktop!!! Ill switch it when I get home. Link to comment Share on other sites More sharing options...
64bit_Tuning Posted May 19, 2013 Report Share Posted May 19, 2013 Did removing the chip solve your problem? Link to comment Share on other sites More sharing options...
94 Droptop Posted May 19, 2013 Author Report Share Posted May 19, 2013 My next day off is not until tuesday so Ill mess with it and the grounds then Link to comment Share on other sites More sharing options...
94 Droptop Posted May 24, 2013 Author Report Share Posted May 24, 2013 Well I redid both the ecu grounds. Cleaning the one on the chassis next to the ecu. Then made ground from the battery in the trunk to the ground at the firewall. havent had time to test it yet.- - - Updated - - -pulled the chip to. Havent tested yet Link to comment Share on other sites More sharing options...
Det_Riot Posted May 24, 2013 Report Share Posted May 24, 2013 In for results! Link to comment Share on other sites More sharing options...
01yellercobra Posted May 24, 2013 Report Share Posted May 24, 2013 Is the ignition module the same as the TFI? Link to comment Share on other sites More sharing options...
94 Droptop Posted May 25, 2013 Author Report Share Posted May 25, 2013 Going out of town ill have to test it when I get back. Check back next week sometime. Link to comment Share on other sites More sharing options...
