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v8powerv8jim
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Posts: 25
Joined: Tue Jan 17, 2012 7:18 am
Location: U.K.

94 Mustang turbo non starter

Post by v8powerv8jim » Thu Jul 28, 2016 5:03 pm

Well I'm having a very annoying issue with my 94 347 turbo,recently upgraded to a precision turbo and now it won't run.
It is tuned with a Tweecer,and it will fire up for 1-2seconds then die...but strangely if I switch the Tweecer off,it will start and run off the stock ECU but obviously crappy.
Things I have tried-
Swapping out the Tweecer for a known good unit,
Swapping the ECU and CCRM for another with the same fault.
Any ideas anyone?? Any help appreciated.
1994 GT,342 Sportsman B50,Vic JR Heads,HP Performance 76mm turbokit 16lbs,Trick Flow Box R series intake,MSD Pro Billet,AFM B41 Cam,1 7/8 headers,60lb inj,Vortech rails & Maxflow fuel kit,single 3.5" exhaust
Tweecer RT BE/EA CBAZA

Drivetrain-AOD with Lentech VB,UCC converter,4R70W internals,3.55's.
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v8powerv8jim
Gear Head
Posts: 25
Joined: Tue Jan 17, 2012 7:18 am
Location: U.K.

Re: 94 Mustang turbo non starter

Post by v8powerv8jim » Fri Jul 29, 2016 12:43 am

Ran codes,same old codes for deleted stuff only.
Code reader won't work with Tweecer in though,just keeps cycling fuel pumps on and off.
1994 GT,342 Sportsman B50,Vic JR Heads,HP Performance 76mm turbokit 16lbs,Trick Flow Box R series intake,MSD Pro Billet,AFM B41 Cam,1 7/8 headers,60lb inj,Vortech rails & Maxflow fuel kit,single 3.5" exhaust
Tweecer RT BE/EA CBAZA

Drivetrain-AOD with Lentech VB,UCC converter,4R70W internals,3.55's.
Top
v8powerv8jim
Gear Head
Posts: 25
Joined: Tue Jan 17, 2012 7:18 am
Location: U.K.

Re: 94 Mustang turbo non starter

Post by v8powerv8jim » Fri Jul 29, 2016 2:41 pm

12volts at injectors verified....still the same,fires up then immediately dies.
Switch Tweecer switch to off position,fires up and runs,but not good.
1994 GT,342 Sportsman B50,Vic JR Heads,HP Performance 76mm turbokit 16lbs,Trick Flow Box R series intake,MSD Pro Billet,AFM B41 Cam,1 7/8 headers,60lb inj,Vortech rails & Maxflow fuel kit,single 3.5" exhaust
Tweecer RT BE/EA CBAZA

Drivetrain-AOD with Lentech VB,UCC converter,4R70W internals,3.55's.
Top
decipha

Re: 94 Mustang turbo non starter

Post by decipha » Fri Jul 29, 2016 7:21 pm

obviously your tune is corrupt or not configured correctly
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v8powerv8jim
Gear Head
Posts: 25
Joined: Tue Jan 17, 2012 7:18 am
Location: U.K.

Re: 94 Mustang turbo non starter

Post by v8powerv8jim » Sat Jul 30, 2016 2:03 am

Yeah it looks that way but no changes have been made in the tune recently,I've tried loading the tune to all positions,and also wrote an older tune to it that I know is good.
1994 GT,342 Sportsman B50,Vic JR Heads,HP Performance 76mm turbokit 16lbs,Trick Flow Box R series intake,MSD Pro Billet,AFM B41 Cam,1 7/8 headers,60lb inj,Vortech rails & Maxflow fuel kit,single 3.5" exhaust
Tweecer RT BE/EA CBAZA

Drivetrain-AOD with Lentech VB,UCC converter,4R70W internals,3.55's.
Top
v8powerv8jim
Gear Head
Posts: 25
Joined: Tue Jan 17, 2012 7:18 am
Location: U.K.

Re: 94 Mustang turbo non starter

Post by v8powerv8jim » Sat Jul 30, 2016 4:47 pm

How does this tune look?
its a scaled tune,one 02,60 LB injectors....please take a look.
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1994 GT,342 Sportsman B50,Vic JR Heads,HP Performance 76mm turbokit 16lbs,Trick Flow Box R series intake,MSD Pro Billet,AFM B41 Cam,1 7/8 headers,60lb inj,Vortech rails & Maxflow fuel kit,single 3.5" exhaust
Tweecer RT BE/EA CBAZA

Drivetrain-AOD with Lentech VB,UCC converter,4R70W internals,3.55's.
Top
decipha

Re: 94 Mustang turbo non starter

Post by decipha » Sat Jul 30, 2016 9:24 pm

the whole back half of the tune is deleted

i copied it over from the t4m2

give it a check over and make sure nothing important changed
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v8powerv8jim
Gear Head
Posts: 25
Joined: Tue Jan 17, 2012 7:18 am
Location: U.K.

Re: 94 Mustang turbo non starter

Post by v8powerv8jim » Sun Jul 31, 2016 1:09 am

Very weird....when you say the back half,which area of the tune? I'll take a look once I've access to my laptop soon
Thanks
1994 GT,342 Sportsman B50,Vic JR Heads,HP Performance 76mm turbokit 16lbs,Trick Flow Box R series intake,MSD Pro Billet,AFM B41 Cam,1 7/8 headers,60lb inj,Vortech rails & Maxflow fuel kit,single 3.5" exhaust
Tweecer RT BE/EA CBAZA

Drivetrain-AOD with Lentech VB,UCC converter,4R70W internals,3.55's.
Top
decipha

Re: 94 Mustang turbo non starter

Post by decipha » Sun Jul 31, 2016 6:15 am

somewhere around 0xf000 on up

looks like a tune was written to a chip then copied out
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