98 Gt questions

lakesidecustoms · January 13th, 2012, 11:53 AM

I have a 98 Gt 5 speed. I bought it with rod noise so I did a motor swap on it. I have a question, it had a pro charger on it before I bought it. The guy I got it from bought the car for the charger. So he removed the charger but that was all. It also has 24lb injectors msd coils x pipe flow masters. I tried to use the stock injectors that came with the replacement motor but it wouldnt even start. I put the 24s back in and it fired right up. I was going to us the stock injectors because all I have is a stock mass air. Any ideas why it wont run on stock 19s? Could it be chipped and how would I be able to tell? Also can I use a mass air from a 4v car and run the 24s? Thanks

drakkhen20 · January 13th, 2012, 12:45 PM

sounds like to me... it may still have a tune on it or chipped. take the computer out the passenger side dont unplug it but just look at the other end to see if there a procharger chip or anything that looks like it was added, another way is too put a code reader on it and see if it gives you any strange codes like pcm read error or rom read error,thats what my 98 generally says but I called my tuner place and they told me that thats just normal because it has the tune on, my 98 runs fine and doesnt throw the check engine light. you should be able to swap to a bigger maf from another bigger motor mustang with little problems. you wont know til you try. try to contact that guy back and ask him if it was chipped or flashed tuned. if he says yes then thats why its not running with 19s if he says no then im lost as much as you are lol.btw, what.engine did you swap for? stock 98 non-pi or stock pi(99-04)?

lakesidecustoms · January 13th, 2012, 12:51 PM

I just replaced it with a non pi it was a cheap way to get it going. We are going to build a pi engine for it or do the 4v swap later. Just trying to make it a driver now. I remember him mentioning a chip so I will start there. If it is chipped can I just remove it? Or does the computer have to flashed once its unplugged? thanks

termi_GT · January 13th, 2012, 01:02 PM

You can just remove the chip. Although I find it odd that it won't at least fire with the 24's.

As far as going with a 4v M/A meter. I beleive you should be able to run a 96-98 cobra meter. Not positive though. A 99+ 4V meter has the IAT senser built into it so I think the actual meter itself will be pinned diffirently.

lakesidecustoms · January 13th, 2012, 08:43 PM

Originally Posted by termi_GT

You can just remove the chip. Although I find it odd that it won't at least fire with the 24's.

As far as going with a 4v M/A meter. I beleive you should be able to run a 96-98 cobra meter. Not positive though. A 99+ 4V meter has the IAT senser built into it so I think the actual meter itself will be pinned diffirently.

It will fire with the 24s. I put the 24s on the new engine to start with but it was running rich and high idle. So I tried the stock injectors and it would try to run but wouldnt take any fuel. Its was running like it was out of gas. I guess I will see if it has a chip in the morning when I go back to the shop. What will I have to do to put a stock program in it? Take it to the dealer? I also know where a 96 gt is sitting I can get the pcm from it but didnt know if it would run without taking to the dealer and having it flashed.

lakesidecustoms · January 13th, 2012, 10:19 PM

I have a 98 mustang gt. I have a stock 96 gt pcm. I need to know if I can install a pcm from the 96 in the 98 with out having it reprogrammed. I know some makes you have to have it done by the dealer. Thanks

p4ndiamond · January 13th, 2012, 11:31 PM

it is wired differently and will not work . And even if it did it would have to have PATS reprogrammed.

lakesidecustoms · January 13th, 2012, 11:46 PM

One more question you might be able to answer. The reason I was wondering was I have a 98 Gt in the shop it had a pro charger on it. But I bought the car without it. If I need to take the program out of the car how would we do it? Will I need to take it to the Ford dealer? thanks

termi_GT · January 14th, 2012, 01:33 AM

If it is chipped you can just pull it out and the tune will be back stock. If it has been flashed and you are missing the tuner, you will have to have it all reset at ford. They charge 1 hour labor. Should be about $80. You have to have 2 keys to do this.

deedub97GT · January 14th, 2012, 03:18 AM

are you trying to put a stock tune back on the car? if thats the case a ford dealer can do it or you can invest in an sct or diablo tuner. if this is the only time you are ever going to tune the car then just take it to the dealership those tuners are upwards of 400 bucks. i have an sct3 and love the living dog dicks off of it.

deedub97GT · January 14th, 2012, 03:25 AM

Originally Posted by lakesidecustoms

It will fire with the 24s. I put the 24s on the new engine to start with but it was running rich and high idle. So I tried the stock injectors and it would try to run but wouldnt take any fuel. Its was running like it was out of gas. I guess I will see if it has a chip in the morning when I go back to the shop. What will I have to do to put a stock program in it? Take it to the dealer? I also know where a 96 gt is sitting I can get the pcm from it but didnt know if it would run without taking to the dealer and having it flashed.

i bet that the guy has the idle air screw adjusted. right now i have all my mustang built waiting for the tuner. it currently has a stock tune on it and i have 60# injectors in it and it fires right up. and idles very...very high lol. put those 19# back in if you want and then adjust your idle screw a little bit. people run 24# injectors a lot using our stock sized maf. the bigger maf comes on the supercharged 5.4L motors (ford lightning) but cobras use #24 injectors on our 70mm maf's (i think) anyways ill say it again for good measure i think your idle air screw is adjusted in for #24 injectors and at idle the #19's wont give it fuel.

lakesidecustoms · January 14th, 2012, 10:01 AM

Ok thanks everyone. I will see what I come up with today. I will let you guys know. thanks again!

lakesidecustoms · January 16th, 2012, 08:12 PM

Well backed off the idle air screw and it dropped some but it was still staying about 1500 at a idle. I cleaned the throttle body it was gummed up and that let it close all the way. Pulled the PCM to see if it had a chip but it was already removed. Seems to be running great now with the 24lb injector and stock mass air. Took it out for a drive with no problems. Thanks guys for the info. and looks like the next stop is in our paint booth. Thanks again.

January 13th, 2012, 01:02 PM	#4
termi_GT Hardcore Enthusiast 12.41@114 Join Date: Dec 2011 Location: Joplin, MO Posts: 1,320 iTrader: 1 reviews	You can just remove the chip. Although I find it odd that it won't at least fire with the 24's. As far as going with a 4v M/A meter. I beleive you should be able to run a 96-98 cobra meter. Not positive though. A 99+ 4V meter has the IAT senser built into it so I think the actual meter itself will be pinned diffirently. __________________ MM FOBRA CLUB CO-FOUNDER

January 13th, 2012, 10:19 PM	#6
lakesidecustoms Lake View Customs 1998 GT convertible 5 spe Join Date: Jan 2012 Location: KY Posts: 13 iTrader: 0 reviews	pcm swap? I have a 98 mustang gt. I have a stock 96 gt pcm. I need to know if I can install a pcm from the 96 in the 98 with out having it reprogrammed. I know some makes you have to have it done by the dealer. Thanks

January 13th, 2012, 11:31 PM	#7
p4ndiamond Hardcore Enthusiast 1997 Pacific Green Cobra 14.80 No traction Join Date: May 2010 Location: New Orleans Posts: 1,216 iTrader: 0 reviews	it is wired differently and will not work . And even if it did it would have to have PATS reprogrammed. __________________ GT ENGINE (temporary) 4.30 Gears , 31 spline Moser axles , Detroit tru Trac diff, Jmod 4r70w , Pi intake Hitech stage 2 cam, Vortech V2 3.33 pulley. Alum drive shaft. Lowering kit x2 ball joints ,screamin demon coils, LCA "

January 14th, 2012, 01:33 AM	#9
termi_GT Hardcore Enthusiast 12.41@114 Join Date: Dec 2011 Location: Joplin, MO Posts: 1,320 iTrader: 1 reviews	If it is chipped you can just pull it out and the tune will be back stock. If it has been flashed and you are missing the tuner, you will have to have it all reset at ford. They charge 1 hour labor. Should be about $80. You have to have 2 keys to do this. __________________ MM FOBRA CLUB CO-FOUNDER

January 14th, 2012, 03:18 AM	#10
deedub97GT MM's DRUNKEN SAILOR single turbo in the works as fast as i can push it! Join Date: Feb 2008 Location: Great lakes IL Posts: 2,210 iTrader: 0 reviews	are you trying to put a stock tune back on the car? if thats the case a ford dealer can do it or you can invest in an sct or diablo tuner. if this is the only time you are ever going to tune the car then just take it to the dealership those tuners are upwards of 400 bucks. i have an sct3 and love the living dog dicks off of it. __________________ MILITARY CREW GSM3 i love throbbing meat

January 13th, 2012, 11:53 AM	#1
lakesidecustoms Lake View Customs 1998 GT convertible 5 spe Join Date: Jan 2012 Location: KY Posts: 13 iTrader: 0 reviews	98 Gt questions I have a 98 Gt 5 speed. I bought it with rod noise so I did a motor swap on it. I have a question, it had a pro charger on it before I bought it. The guy I got it from bought the car for the charger. So he removed the charger but that was all. It also has 24lb injectors msd coils x pipe flow masters. I tried to use the stock injectors that came with the replacement motor but it wouldnt even start. I put the 24s back in and it fired right up. I was going to us the stock injectors because all I have is a stock mass air. Any ideas why it wont run on stock 19s? Could it be chipped and how would I be able to tell? Also can I use a mass air from a 4v car and run the 24s? Thanks

January 13th, 2012, 12:45 PM	#2
drakkhen20 Regular 1998 Mustang GT Convert. Join Date: Oct 2011 Location: Mississippi Posts: 293 iTrader: 0 reviews	sounds like to me... it may still have a tune on it or chipped. take the computer out the passenger side dont unplug it but just look at the other end to see if there a procharger chip or anything that looks like it was added, another way is too put a code reader on it and see if it gives you any strange codes like pcm read error or rom read error,thats what my 98 generally says but I called my tuner place and they told me that thats just normal because it has the tune on, my 98 runs fine and doesnt throw the check engine light. you should be able to swap to a bigger maf from another bigger motor mustang with little problems. you wont know til you try. try to contact that guy back and ask him if it was chipped or flashed tuned. if he says yes then thats why its not running with 19s if he says no then im lost as much as you are lol.btw, what.engine did you swap for? stock 98 non-pi or stock pi(99-04)? __________________ 98 Mustang GT Convert. 95 Mustang GT 5.0L

January 13th, 2012, 12:51 PM	#3
lakesidecustoms Lake View Customs 1998 GT convertible 5 spe Join Date: Jan 2012 Location: KY Posts: 13 iTrader: 0 reviews	I just replaced it with a non pi it was a cheap way to get it going. We are going to build a pi engine for it or do the 4v swap later. Just trying to make it a driver now. I remember him mentioning a chip so I will start there. If it is chipped can I just remove it? Or does the computer have to flashed once its unplugged? thanks

January 13th, 2012, 11:46 PM	#8
lakesidecustoms Lake View Customs 1998 GT convertible 5 spe Join Date: Jan 2012 Location: KY Posts: 13 iTrader: 0 reviews	One more question you might be able to answer. The reason I was wondering was I have a 98 Gt in the shop it had a pro charger on it. But I bought the car without it. If I need to take the program out of the car how would we do it? Will I need to take it to the Ford dealer? thanks

January 14th, 2012, 10:01 AM	#12
lakesidecustoms Lake View Customs 1998 GT convertible 5 spe Join Date: Jan 2012 Location: KY Posts: 13 iTrader: 0 reviews	Ok thanks everyone. I will see what I come up with today. I will let you guys know. thanks again!

January 16th, 2012, 08:12 PM	#13
lakesidecustoms Lake View Customs 1998 GT convertible 5 spe Join Date: Jan 2012 Location: KY Posts: 13 iTrader: 0 reviews	Well backed off the idle air screw and it dropped some but it was still staying about 1500 at a idle. I cleaned the throttle body it was gummed up and that let it close all the way. Pulled the PCM to see if it had a chip but it was already removed. Seems to be running great now with the 24lb injector and stock mass air. Took it out for a drive with no problems. Thanks guys for the info. and looks like the next stop is in our paint booth. Thanks again.

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98 Gt questions

98 Gt questions

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