LS4 Performance - Diablo tune and now car won't start.

I've had the 91 octane tune in for months with no problems and yesterday decided to try out the Diablo tune. So today I go for a drive to do some logs to get the fuel trims dialed in. So I get home adjust the tune and go to install it but then get some error message about the tune not loading and now my car will not start, won't even turn over. The handheld is now saying that the last tune written doesn't match the one on file or something to that extent. I can't even load the original factory tune back to the car. To make matters worse Diablo doesn't have weekend tech support so I'm stuck with a dead car until Monday morning. This is such bullshit how can you sell a product that can potentialy leave a person stranded and not offer round the clock support.

I've had the 91 octane tune in for months with no problems and yesterday decided to try out the Diablo tune. So today I go for a drive to do some logs to get the fuel trims dialed in. So I get home adjust the tune and go to install it but then get some error message about the tune not loading and now my car will not start, won't even turn over. The handheld is now saying that the last tune written doesn't match the one on file or something to that extent. I can't even load the original factory tune back to the car. To make matters worse Diablo doesn't have weekend tech support so I'm stuck with a dead car until Monday morning. This is such bullshit how can you sell a product that can potentialy leave a person stranded and not offer round the clock support.



Ditto. I had this exact same problem with mine about a month ago. It was supposedly "hardware related". My final opinion was it was bullshit related and sold the Trinity and all ties to it and got HPTuned

So you couldn't get it fixed at all before you retuned with HP? What did Diablo tell you?

I had this happen to me the very first few days diablo offered support for ls1 fbodies through the trinity. Bricked the damn pcm, fought back and forth with someone through email, then finally they had me send the trinity and pcm to them.

First fed me BS about how they were going to have to create a whole NEW tune on the PCM... I told them to KMA and to restore MY tune back on the pcm, because i sure as hell wasn't going to be stuck (locked) with their "tune".

I eventually got it back and it worked as before, although i'm really not sure what they did and they never gave me a reason of what happened, but i do know that month they remove the fbody update from the site temporarily. (sidenote: i never had a chance to revise the tune on the pcm because water leaked in shortly after and destroyed it) This was about a couple of weeks of downtime btw

HP Tuners is awesome... but be forewarned the whole MPVI PRO standalone datalogger doesn't work (right now anyways... or the past 2 years from what i've read)... so don't bother spending the extra $200 on that

I had this happen to me the very first few days diablo offered support for ls1 fbodies through the trinity. Bricked the damn pcm, fought back and forth with someone through email, then finally they had me send the trinity and pcm to them.

First fed me BS about how they were going to have to create a whole NEW tune on the PCM... I told them to KMA and to restore MY tune back on the pcm, because i sure as hell wasn't going to be stuck (locked) with their "tune".

I eventually got it back and it worked as before, although i'm really not sure what they did and they never gave me a reason of what happened, but i do know that month they remove the fbody update from the site temporarily. (sidenote: i never had a chance to revise the tune on the pcm because water leaked in shortly after and destroyed it) This was about a couple of weeks of downtime btw

HP Tuners is awesome... but be forewarned the whole MPVI PRO standalone datalogger doesn't work (right now anyways... or the past 2 years from what i've read)... so don't bother spending the extra $200 on that

I'm starting to worry now. I've seen many threads about peoples PCM being screwed up and having to either have a dealership (25-30 miles from me)reflash it or having to go through a PITA process of sending it to Diablo. I was going to get a tune from Lew next week but if Diablo can't/won't fix this issue I'm selling the handheld and won't have anything to do with Diablo.

I had to have my car towed to the dealer and have them flash the new PCM and TCM files onto my car. That was $130. I bought the trinity from a friend of mine, it was about a week old and Diablosport wouldn't cover anything because it was now second hand. I found them to me extremely rude and disrespectful.

I was told by Jon at Diablo, that the tune didn't install correctly to my car because the trinity couldn't read my TCM. It couldn't without a update that he was going to send me after I called in. Therefore, I had no way of preventing my car from being bricked. It had the newest publicly released software , yet , it wasn't their fault. I'm sure Lew will chime in here soon. Everyone has their own opinions, and you just heard mine.

I had to have my car towed to the dealer and have them flash the new PCM and TCM files onto my car. That was $130. I bought the trinity from a friend of mine, it was about a week old and Diablosport wouldn't cover anything because it was now second hand. I found them to me extremely rude and disrespectful.

I was told by Jon at Diablo, that the tune didn't install correctly to my car because the trinity couldn't read my TCM. It couldn't without a update that he was going to send me after I called in. Therefore, I had no way of preventing my car from being bricked. It had the newest publicly released software , yet , it wasn't their fault. I'm sure Lew will chime in here soon. Everyone has their own opinions, and you just heard mine.

Sounds about right, all of the forum replies I see from them ends in something like "Sorry not our fault".

Anyone know if a dealership can reflash a PCM out of the car? The towing bill alone would be a blow to my wallet. Maybe I'm just getting ahead of myself and it will be an easy fix, guess I'll know Monday :mad:

dont buck. why dont you pm lew im sure he can help you out.

dont buck. why dont you pm lew im sure he can help you out.

I did. Nothing he could do.

The dealership requires the car.

The towing bill alone would be a blow to my wallet.


If you have full coverage insurance they will cover the towing bill.

ok first did you make a backup of the factory tune on your PC? load that tune back onto your diablo let it redo its calibration and you should be fine. and then try again to tune this happen to me when the update wiped out all of data but after loading the factory cal and tune back on i was golden. Diablo is still a great device there are variables they cant control such as improper voltage on your car or bad cable or loose connection while flashing the tune.


matter of fact if you want feel free to email me if u need help 91parkave@gmail.com best of luck

ok first did you make a backup of the factory tune on your PC? load that tune back onto your diablo let it redo its calibration and you should be fine. and then try again to tune this happen to me when the update wiped out all of data but after loading the factory cal and tune back on i was golden. Diablo is still a great device there are variables they cant control such as improper voltage on your car or bad cable or loose connection while flashing the tune.


matter of fact if you want feel free to email me if u need help 91parkave@gmail.com best of luck

No I never backed anything up on my PC, didn't even know that was possible or something I should do until I had this problem and started researching. I had just ordered a USB cable the day before this happened so at least I'll have that if its needed. Now I'm just waiting on Monday moring with my fingers crossed.

I've had my PCM and TCM reflashed outside of the car before by Dave@Triple Edge, but I think he has some sort of custom bench setup to do it, but might be worth a call to the dealer before you decide to tow it. Sorry about your luck with Diablo, HPTuners worked like a charm for me.

No I never backed anything up on my PC, didn't even know that was possible or something I should do until I had this problem and started researching. I had just ordered a USB cable the day before this happened so at least I'll have that if its needed. Now I'm just waiting on Monday moring with my fingers crossed.

i hear you man. I wish Diablo wouldve been more specific as to the importance of backing up your factory tune first on your PC and THEN tune. lol but hey experience is a motherfucker. like you i messed mine up after the update on a friday and had to wait all weekend lol. luckily though they got me squared away really fast monday morning, and were more than helpful of my situation, so anyway man best of luck sucks it happen too you. Diablo should seriously have at least one tech available for emergency problems on the weekend though.

Get it reflashed at the dealer, put the Diablo in the trash, get tuned by Hptuners/reputable IN PERSON tune and you shouldn't have any problems.

I had to reflash my car cause of the Superchips cortex.That's why I'm going to get tuned at a shop.

When it happened to me , i had all of my tunes backed up on my pc and it didnt help me. The pcm was bricked it needed a tow and a dealer reflash.

My car has not seen a tune since , diablosport was of no help whatsoever , and they frankly did not seem to give a shit that i now had to cough up 200$ to tow the fucking thing into to town but then had to take off my left arm and pay the stealership 150$ to reflash the thing.

This was while i was trying to install my lewtune. The only explanation DS ever gave me was that i needed to install a canned tune before i went to a custom tune. Because custom tunes dont back up the oem tunes to the trinity or some such bullshit. But they never would acknoledge the fact that it had always worked fine until thier latest update for our TCMs came out.

Lew helped me out to the best of his ability. I couldnt ask anymore from him.

yeah, nothing I can do about that... need to contact diablo... the original backup stock tune is still on the trinity, and they may be able to do a "force restore".. you'll need to be in your car with the trinity when you call them...

if not, then you can send it in to them to have it done...

and I've had a predator since 2005, and a trinity since they originally came out - hell I was a beta tester for it - and have never once had any issue with either of them on my car... not even this tcm related error... but yes, I have heard of a couple others having this issue on theirs with it not reading the tcm file and causing this problem, and diablo has always been able to fix 'em right up...

but yeah, your next course of action is to call them....

yeah, nothing I can do about that... need to contact diablo... the original backup stock tune is still on the trinity, and they may be able to do a "force restore".. you'll need to be in your car with the trinity when you call them...

if not, then you can send it in to them to have it done...

and I've had a predator since 2005, and a trinity since they originally came out - hell I was a beta tester for it - and have never once had any issue with either of them on my car... not even this tcm related error... but yes, I have heard of a couple others having this issue on theirs with it not reading the tcm file and causing this problem, and diablo has always been able to fix 'em right up...

but yeah, your next course of action is to call them....

I'm actually using a predator not the trinity, can a predator be used for a force restore?

but yes, I have heard of a couple others having this issue on theirs with it not reading the tcm file and causing this problem, and diablo has always been able to fix 'em right up...


:poke:Except for me

I'm actually using a predator not the trinity, can a predator be used for a force restore?

yes, they can do a force restore with the predator as well....

if you need to get your car towed there , go buy aaa , it will cost 84 bucks for 3 towes of 100 miles or less , it pays for itself on the first time .

I'm actually using a predator not the trinity, can a predator be used for a force restore?what revision is on the Predator?

Please give us a call with the tool in the car, we'll sort this out for you asap.

Thanks

Just Called Diablo and the car is now starting! Just had to get the password to reset the tool and load the factory tune.

Good deal.

Sounds like maybe there was a low voltage situation perhaps, or a communication disruption for some reason, but you should be fine from here on.

Thanks

Excellent to see this resolved.

Smh :nono:

I can confirm the previous tcm errors have been fixed