TRD S/C ECM Reflash with the normally aspirated set up!!

hybrid2.0 · Apr 8, 2012

People,
Need help urgently!!, what do you think??

Recently I switch from the TRD s/c setup to the naturally aspirated setup again. The thing is that after finish the swap and do the first run, it shows a crazy fail!!, doesnt respose!! Runs like a shiet!!,
After a couple of minutes it shows the following codes : P0171 and P0174.
I started the troubleshooting cleaning the MAP sensor with alcohol (it was really dirt), then after that i ensure all vacuum lines are properly routed and fixed. Everything looks fine!!.
I had no choice then and I took the truck to a near toyota dealership. After 5 or 6 hours of troubleshootin of the technicians, they can't figure out which was the problem and finally deduced that the most probable root cause of the problem is that the ECM still with the TRD programing reflash for the SC,

They told me that there is no way to get the computer back to the factory settings and I would need to purchase a new one!!

Any recommendations??

Does any one have a stock ECM that can sell me or borrow me in order to confirm their theory?

outlaw7 · Apr 8, 2012

Did you leave the yellow s/c injectors in? If not that's probably your issue.

blackx-runner · Apr 8, 2012

Like posted in your other thread you can not just swap ECMs. It doesn't work like that anymore. You would have to buy a new unit and get it flashed for your truck.

Your best option is going to be putting the TRD injectors back in the truck. Its mapped for larger injectors so of coarse its going to run like shit with different injectors in there. I know Ntinhri did this when he traded in his truck, says it ran fine with the TRD flash, TRD injectors and no blower.
You should have come here and asked first so you didn't waste 5-6 hours at toyota having them trouble shoot the issue.

hybrid2.0 · Apr 8, 2012

outlaw7 said:
Did you leave the yellow s/c injectors in? If not that's probably your issue.

No, I took them off and put the factory ones.

The thing is that I posted the entire SC setup for sale.

Anyway , I' ll need to install them again to see if it fix the problem.

Thanks very much guys!!

Let you know later if it works.

Murderface · Apr 8, 2012

It should work, if ur not seeing boost then the ECM won't dump the extra fuel

hottacoX · Apr 8, 2012

Outlaw called it! You need to leave the yellow sc injectors in the motor for it to work. Put them back in and you should be good to go. Most trucks won't take a used ECU you would have to buy a new one and flash that

blackx-runner · Apr 8, 2012

The TRD injectors do come up for sale sometimes. Usually when someone upgrades to the larger 660 (E85) injectors. You may be able to get an extra set and still sell the kit complete.

hybrid2.0 · Apr 10, 2012

Problem Solved Guys!!

Run Nice and smooth with the TRD injectors.

Thanks very much!!

xrgilly · Apr 10, 2012

hybrid2.0 said:
Problem Solved Guys!!

Run Nice and smooth with the TRD injectors.

Thanks very much!!

thats the best thing about this forum ask and u get an answer and its often so simple

Superloki24 · Mar 30, 2017

I hate to revive an old thread, but I assume that if I was to install the TRD S/C injectors into my truck (stock flash on the ECU) and then drive it to the dealership to get re-flashed for the S/C it would run like crap right?
Would it harm it at all or just make it run really rich?
FYI I live about 60kms (35miles) from the dealership.

Slywhitty · Mar 30, 2017

Superloki24 said:
I hate to revive an old thread, but I assume that if I was to install the TRD S/C injectors into my truck (stock flash on the ECU) and then drive it to the dealership to get re-flashed for the S/C it would run like crap right?
Would it harm it at all or just make it run really rich?
FYI I live about 60kms (35miles) from the dealership.

Giving up on waiting for a ucon? Lol. I know lots have drove to the dealership after installing their blower for the flash. Just take it easy. Stay out of boost and you should be fine. I could be wrong though so we will wait for a concrete answer from someone who has done it

NHXRUNNER · Mar 30, 2017

I installed the TRD S/C in my garage. Keep it under 2K rpm and 50% throttle. You'll be fine. I drove 29 miles one way.

o0opackersfano0o · Mar 30, 2017

If you were in Maine I could do it for you and come to you lol. No ones in Maine tho.

Superloki24 · Mar 31, 2017

Slywhitty said:
Giving up on waiting for a ucon? Lol. I know lots have drove to the dealership after installing their blower for the flash. Just take it easy. Stay out of boost and you should be fine. I could be wrong though so we will wait for a concrete answer from someone who has done it

Lol, yeah I can't wait any longer. The 100,000km mark was passed a month ago, so the warranty issue is no longer an issue and the supercharger must go on. I might get a MAF cal to supplement the TRD reflash and call it good enough. Should get me over the 300hp mark.

NHXRUNNER said:
I installed the TRD S/C in my garage. Keep it under 2K rpm and 50% throttle. You'll be fine. I drove 29 miles one way.

Sounds good. I'll do that then. I'm sure I won't be keeping it under 50% throttle on the way back from the dealer though....haha. Thanks.

NHXRUNNER · Mar 31, 2017

Superloki24 said:
Sounds good. I'll do that then. I'm sure I won't be keeping it under 50% throttle on the way back from the dealer though....haha. Thanks.

I gave the ECU some time to re-learn idle and such.....so I didn't get on it until the last 28 miles home...

Welcome!

TRD S/C ECM Reflash with the normally aspirated set up!!

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