Anyone used HPT yet to tune 03-04 cobras ?

[GoinBroke]

So has anyone used HPT to tune any 03-04 Cobras ? Trying to get one running has VMP5000, ID1000s, Return style fuel system and twins.

[LSxpwrdZ]

Attempted to on a 2003 Car. Started with a stock tune file (car was stock other than pulley and injectors) and imputed 60lb Siemens injector data flashed the car and it went bonkers. Would have sent this all into HPT but he decided to rip the stock junk off and put a PNP Haltech Elite on the car.

[GoinBroke]

Sounds like same Problem here. Cant get it to work cars pig rich no matter what If you try and plug the numbers in like you would with SCT.

[[email protected]]

I'm having the same problem with my 04 GT car us running stupid rich and i cannot figure it out, mine is not a cobra but I have added a vortech v2 supercharger and had another member help me out but ut is still jacked up. it also dont help that you can not use the vcm scanner

[95Gturbo]

What is your minimum pw, comp mult vs batt voltage, breakpoint, and breakpoint multiplier? These cars are stupid sensitive to those numbers.

[LSxpwrdZ]

There is something wrong in the editor or something because I logged raw PW with my dyno and with the canned tune from the SCT (going from memory) the pulsewidth was in the 2-3ms region on the stock injectors at idle. Flash the Ford data for SD60's in and idle PW was 10ms. Dang WB pegged 0.50 lambda.

[tbrtuning]

I agree. Something is up. I suspect it does something strange like converting to g/s starting with different unit when it doesn't need to or something like that. I've tuned these with other software and some I've scaled manually with big injectors and not has any issue but I can't get the ones I've tried to run from HP Tuners with bigger injectors

[Cyle_greenhill]

We tune these regularly and I can tell you that there is definitely something wrong with the injector scaling with HPT. if using hpt, we have to start with stock injector data and modify by percent until we get it right. have tried logging and inputting numbers until my head hurt and it just doesn't work. start with the stock injector data and notice the car runs much better and then just scale little by little until you get it smooth

[Bill@HPTuners]

I agree. Something is up. I suspect it does something strange like converting to g/s starting with different unit when it doesn't need to or something like that. I've tuned these with other software and some I've scaled manually with big injectors and not has any issue but I can't get the ones I've tried to run from HP Tuners with bigger injectors

We tune these regularly and I can tell you that there is definitely something wrong with the injector scaling with HPT. if using hpt, we have to start with stock injector data and modify by percent until we get it right. have tried logging and inputting numbers until my head hurt and it just doesn't work. start with the stock injector data and notice the car runs much better and then just scale little by little until you get it smooth

There is something wrong in the editor or something because I logged raw PW with my dyno and with the canned tune from the SCT (going from memory) the pulsewidth was in the 2-3ms region on the stock injectors at idle. Flash the Ford data for SD60's in and idle PW was 10ms. Dang WB pegged 0.50 lambda.

What is your ticket number through support so I can check the status?

[tbrtuning]

I never even created a ticket. I was just waiting it out for the bugs to be worked out before I started direct flash tuning these cars with HP Tuners. I guess we've all been doing the same though.

[GoinBroke]

Wow, Thanks for info guys. Glad to see I was not the only one having trouble.

[Bill@HPTuners]

I never even created a ticket. I was just waiting it out for the bugs to be worked out before I started direct flash tuning these cars with HP Tuners. I guess we've all been doing the same though.

Here's the thing,if nobody reports it to us we assume that all our work was good and we move onto new projects. Until it gets reported we can't even look into it.

[decipha]

I have over a dozen 03 cobras here at the shop. I do not use hptuners for them but I won a mvpi2 at pri. If yall want to donate credits for testing I'd be willing to get to the bottom of it.

[95Gturbo]

Holy crap, Decipha is in here!?

[LSxpwrdZ]

Here's the thing,if nobody reports it to us we assume that all our work was good and we move onto new projects. Until it gets reported we can't even look into it.

I would have reported this but it was a buddy that had one that we were messing with. I won't see another one all year so going forward I would be little help on the subject. That buddy said F the stock ecu junk and put a Haltech in it too so even that car I don't have access to anymore.

[momotunes]

Does anyone know if this will affect 04 trucks as well? Has me worried as I just purchased injectors for a f150.

[mstang_man]

look at FBFG2TF 2004 Mustang GT That data points are not correct for the all the injector Data. HI slope, Low Slope, Break Point, and MIN Pulse Width can input ok, it all the multiplier for offsets that the data is incomplete.. does anyone else experience the same thing ?

[Weedwaka]

Was this issue ever resolved ?

I just plugged in all of the data provided by Injector Dynamics to run their 725's in our 2002 Mustang GT.

[Weedwaka]

Does anyone know if there is a ticket open on this issue I can reference ?

I am a few days from startup and I do not want to flood our brand new engine with fuel using this software.

[Weedwaka]

I think I may have found something in regards to the EEC-V and the injector data multiplier tables causing grief. Did you guys rescale the PSI data points to match the new plug and play data points from the injector companies ? That was the first thing I did.

Starting with a stock file and multiplying by % keeps the 0 - 128 PSI data points as they were originally in the EEC-V .

Decipha - www.efidynotuning.com
On eec-v never change the 128 psi and 0 psi table values in the fuel injector deltap multiplier functions.