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Old 11-04-2014, 03:27 PM   #1
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Few problems?

Hi guys I have a couple questions about my fox its a 1989 gt convertable and its been a problem but I finally judt got time to ask ok when I hit a red light and I have the break it my car jerks back and forth like I have a giant cam or something and also if I put it in neutral its perfectly fine its automatic stock trans? Thanks also when im driving at a normal speed keep my foot on the gas it feels as if its having a problem going well not really just putts a little bit its my daily driver and i need to fix this if I have a problem and another question I had bought some #24 injectors and there is some dings in the bottom part is this a problem? Or can I just install them? Ill post the pics and thanks guys.

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Old 11-04-2014, 08:21 PM   #2
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Like I always say....run your codes.

Those injectors look a little rough. You could have them checked out and flowed for cheap and make sure you put some new orings.

Do you need 24's?

Do you have heads, intake and a cam?
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1989 Sonic Blue LX Coupe, 349 ci, TW heads, TFS Track Heat Intake, 75mm Accufab TB, 80mm ProM, 30 lb. inj, TKO, 3.73, 31 spline w/ TruTrac, MAC 1-5/8" LT headers w/ H pipe, Flowmaster, electric fan Moates QH
391 rwhp & 424 rwtq...Mustang Dyno 11.5@122mph
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Old 11-04-2014, 08:52 PM   #3
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Im not to familiar what u mean by running my codes? How do you do that? And yes I have intake heads and cam

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Old 11-04-2014, 08:53 PM   #4
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Did you ever get this thing dyno tuned?
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Old 11-04-2014, 09:08 PM   #5
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Check your spark plugs. Mine was doing the same thing and still had the stock plugs. New wires and good ol' motorcraft plugs gapped right and ran like new again

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Old 11-04-2014, 09:41 PM   #6
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I have brand new plugs distributor and wires should I check if my plugs are loose? And no I haven't

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Old 11-04-2014, 09:43 PM   #7
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So no tune then? I know I sound like a broken record but... You keep asking questions about why your car is running like *** and ppl keep telling you to tune it and... are you like... hoping someone will tell you what you want to hear?
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Old 11-04-2014, 10:21 PM   #8
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Your the only person who has told me to tune my car and that was a long time ago when I still had stock parts and my car dosent run like *** its just a question... there is a lot of people on here that ask questions im actually looking for people that have had this problem before so maby they have a idea what my problem is.

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Old 11-05-2014, 06:40 AM   #9
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I'm not the only person who has told you to get a dyno tune. You are cammed and in an old pushrod. Your AF is likely way off and the stock computer has no idea what the hell to do since its expecting the stock cam profile. I've had plenty of bucking/stalling problems. Specifically from the E cam at low RPMs in one 5.0 I had. You know what fixed it? Getting the car tuned?
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Old 11-05-2014, 09:53 AM   #10
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Running your codes.....
http://sbftech.com/index.php/topic,2471.0.html


What they mean.....
http://sbftech.com/index.php?PHPSESSID=7261a4935687afe79b81c982b1b049ec&/topic,849.0.html


Base idle reset.....
http://sbftech.com/index.php/topic,1031


Also do the basics like check for vacuum leaks.
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2016 VW GTI 2.0 Turbo

1989 Sonic Blue LX Coupe, 349 ci, TW heads, TFS Track Heat Intake, 75mm Accufab TB, 80mm ProM, 30 lb. inj, TKO, 3.73, 31 spline w/ TruTrac, MAC 1-5/8" LT headers w/ H pipe, Flowmaster, electric fan Moates QH
391 rwhp & 424 rwtq...Mustang Dyno 11.5@122mph
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Old 11-05-2014, 12:56 PM   #11
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I have new rods rockers and rollers everythings pretty much new and I will save up for a tune thanks

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Old 11-05-2014, 01:49 PM   #12
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So are you try anything I posted?


Learning to run your own codes is a great start.
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2016 VW GTI 2.0 Turbo

1989 Sonic Blue LX Coupe, 349 ci, TW heads, TFS Track Heat Intake, 75mm Accufab TB, 80mm ProM, 30 lb. inj, TKO, 3.73, 31 spline w/ TruTrac, MAC 1-5/8" LT headers w/ H pipe, Flowmaster, electric fan Moates QH
391 rwhp & 424 rwtq...Mustang Dyno 11.5@122mph
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Old 11-05-2014, 09:09 PM   #13
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Im looking into it. It sorta seams a bit complicated lol

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Old 11-07-2014, 02:08 AM   #14
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Kyle, you need to run your codes with almost any problem that occurs. It's the easiest way to narrow down where your problem is. A FORD OBD1 code reader is like $20 at Sears. It will save you a lot of trouble getting one. On my 94 there's a wire under the hood on the passenger side near the fire wall. That's where it plugs in. It's simple to use. It comes with a book that has all the codes & instructions on how to use it. Takes about 5-10 minutes to do it. Well worth the $20.
With all your upgrades you should get a Tune. The power difference will make you very happy. I know...They charge too much for a tune as far as I'm concerned. I feel it's only worth $200 at most. But they have to rip you off somehow. It's the nature of the beast.
But you are not going to get the full benefits of your upgrades without one.
I'm guessing you already cleaned you MAF sensor & TPS.
I got tired of fixing things constantly on my 94 so I got rid of it & the Motor I built about a month ago. I couldn't get the H.P. I wanted (400 - 500 H.P.) out of the old 5.0 without spending a small fortune so I gave up on it.
After work today I get my 08 GT which stock has more H.P. than the motor I built that cost me almost $4K to build. I'll just Chip & Supercharge this car with a Tune & be done with it & I'll have all the power I need to make me happy.
I loved my 94 but it was never going to beat an 05-13 Mustang so I sold it.
An 05 V6 Mustang puts out more H.P. than a 87-95 5.0 so the build wasn't worth it to me.
Anyway, looks like I'll be switching over to the 05-09 Forums after today.
Can't wait to get off work today so I can take my new car for a nice long drive....I'm very excited about it as I felt so good just taking it on a short test drive.
Well...hope you get your car figured out soon. Good Luck !!!
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Old 11-07-2014, 07:53 AM   #15
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Before u leave ! Hopefully you ll send us a picture of ur new mustang !!


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Old 11-07-2014, 11:06 AM   #16
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I sure will. Going to pick it up in about 1-2 hours. One thing though...Just for the record "I hate the wheels that are on it". It's got those Gangster Style 20's on it with those Crappy Low Profile Tires. Going to have to get some 18's with Black Rims. The Rims would look good on a Chrysler 300 or something like that..."But Not on a Mustang."
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Old 11-07-2014, 11:34 PM   #17
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I agree with smurf stang the injectors look a bit iffy, my last Stang was an 89 gt, and the guy who had it before had 32lb injectors on it, it would shake and basically drive like ****. Maybe look around for some better injectors and definitely get it tuned. I learned the hard way that should be one of the first things u do when u get an older stang


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