Anyone with drive by wire have a non-piggyback yet?

[Automaton]

Well? After seeing those crazy dynos off of the Unichip, I am pissed about drive by wire. Those curves were up and down all over the place. So is there anything out there compatible with an 03 GT-S? Or if not, how hard is it to convert from DBW to oldschool cable throttle that will be compatible with the PFC? I can't believe there is no DBW version of the PFC. Half of the model years have DBW!

[conehugger]

The big issue on this is the wiring harness has different plugs that hook up to the ECU. I think putting the throttle cable would be the easy part. I know when I was trying to get the unichip and found out they would not work with the 03, it seemed the guy was open to making the correct connectors, but did not think there would be enough demand for it to offset thte cost of making it.

[pr0file]

Stay tuned, Automaton, I'm retuning the Unichip on a different dyno, in another city. These guys are suppposedly pimping out a Lotus Elise! :) So we'll have to wait and see. I'm crossing my fingers! And the guy stated that he'll spend as much time as needed to get the gains! :) And he's only charging me a flat rate! :) Wish me luck!

[Automaton]

Ok. Well I will stay tuned. And I will suggest for the 3rd time I think it is... make sure they figure out how to tune the VVT, not just the ignition timing and A/F mixture.

And hopefully your dyno looks like a normal upward slope instead of a series of /\/\/'s. Then I'd considder getting a custom 2003 wiring harness made and get the Unichip if I could get it all installed and tuned for $1000. How much did you spend? Did you get the wiring harness so you don't have to cut your stock wiring?

[pr0file]

Automaton,

The thing is, I've been bugging Unichip and two tuners, so far, about tuning the VVT. But they've both said that they're trying to figure what is involved with switching it on/off. One tuner turned it on, but wasn't able to figure out how to adjust the turn-on point. It was on from the start.

As for the harness, the first tuner charged me $750: Unichip, universal (spliced) harness and about 4 hours of tuning. The second tuner, I'll see next week, will be charging me a flat rate of $100 for tuning. :)

[cool2miketlu]

The company that is/may be working on this would be the Hydra EMS and it is not done yet, they are still trying to figure out how to get the climate controls working and stuff. Who knows how long they are going to take, they even thought about doing tandom (sp?) stock ECU for the climate control and rest on their system.
I would always go with a standalone if I have a choice, but you do not so sorry...

[conehugger]

Noel,
I am curious why you went with the universal harness. I thought they made a setup for the 2000 - 2002 Celica. The cost was closer to $1500 for the unit, installtion and tuning when I tried to get it done. I had the guys at Modern garage in Salt Lake working on it, and they said they tune these, Unichips, all the time. It was a pretty cool setup with the ignition kill switch and ability to run to maps for say 91 and 100 octane. They also said that the first 2 seconds of open loop could not be changed because the ECU holds in the closed loop. Something about emissions. That is why you see most A/F start up at 14+ and then dive down to 12. If they figured out how to turn it on, then why could they not tie into the RPM sensor and specify when to turn it on?

I want this for the 03 too, and I have been waiting for the Hydra also. I have e-mails from Febuary to this month that says it will be another couple of months. Last e-mail said something about working out a Canada version that would also work on the 03. I am not sure what that meant though.

[pr0file]

Dave,

I went with the universal harness because I thought I was going to get the PnP harness for $750/tuned. But the installer/tuner said other wise and said I was saving money cause the harness was a bit more expensive. I'll see what this new shop says and does, the tech sounds enthusiastic about tuning our engine. We'll soon see... ;)

As for turning on the VVT, he said is was frequency (sound) based, that a crystal vibrated to a certain frequency, then that sound triggered the VVT. I will ask the next shop if they can tie it to a RPM sensor. :)

Yea, the guy at Unichip USA wasn't too helpful...he kept on telling me that it's worthless to lower the VVT and raise the rev limiter... worthless, I don't think so!!

Off the topic, are you going to run the Tour or Pro Tour this year? :) In March there's the San Diego Tour :)

[Jesse IL]

Why not hack the plugs off an 00-02 harness?

[conehugger]

I am too lazy to figure out if the 00-02 plugs would work. Not a bad idea though, I just have to find some part numbers or a wrecked Celica. Along with an 00-02 ECU diagram. I have the 03 diagram.

I wonder where the crystal is? in the ECU?

I'll be running Pro's and Tour's this year. First one is in February in El Paso for me. I haven't decided the class yet though. Lots of changes. Piggy back controller might help me decide somethings, but then again it might just make things worse. :)

[pr0file]

I should look into the spare stock harness idea :) Thanks Jesse IL!

As for the crystal, don't know, it may be in the ECU, I'll inquire about it on Tuesday.

Great to hear that Dave! I'll finally get to meet you in San Diego in March! :) My fianc

[kaioshin]

[QUOTE]Originally posted by pr0file
[B]I should look into the spare stock harness idea :) Thanks Jesse IL!

As for the crystal, don't know, it may be in the ECU, I'll inquire about it on Tuesday.

Great to hear that Dave! I'll finally get to meet you in San Diego in March! :) My fianc

[conehugger]

Spare harness from what year?

Dave

[kaioshin]

Originally posted by conehugger
Spare harness from what year?

Dave
00-01. Not sure, but I can look for the receipt at home. I bought a used motor after spinning a bearing at my first HPDE. :(
Though there's one connector that was busted near the intake manifold not sure what it connected to, but if you just want to splice it up, then it shouldn't matter.

[Oli]

The VVT setting on a PFC are in degrees and based over load and RPM so i wouldn't of thought playing with or changing a crystal would help.

[Automaton]

Does anyone have an email address to contact APEXi in Japan regarding a PFC for drive by wire model Celicas? I don't know if they have DBW in Japan or not, but it is kind of silly that half of the model years use DBW yet no version of the PFC that we know of supports it.

[BgLtUsE]

:mad: I agree!!!! Im gettin tired of waiting.