|Topic Review (Newest First)|
|11-29-2015 10:54 PM|
So did some tuning today. The car is producing 5.3 lbs of boost without dialing up the boost controller any 8 psi will be our target. We tuned idle today and got the fuel trims where they should be. Made some cruise and WOT passes...no KR but didn't scan much because of the hiccup issue though we did narrow that down to the ECM. No vac leaks anywhere.
However we did develop an oil leak!!!!! Got done tuning, parked the car on the extension cord by mistake, and after it sat for a while rolled the car back to get it off the cord only to discover a L shaped oil drip pattern on the garage floor. Tracked it down to one of the AN fittings on the oil return line. Turns out I missed ONE fitting when checking everything. It tightened up just over half a turn (more than enough to leak when things get warm) and it looks good. Will be keeping an eye on it.
After that went to close the hood and the passenger side wouldn't latch. Looked at the piping I had to move to tighten the oil line and thought maybe one of them was hitting the hood. After getting all that to where it shouldn't be obstructing the hood it still wouldn't latch. It seemed like the latch wasn't catching the hood like it should. Sure enough, the latch was stuck. Lubed it up a bit and now all is well.
The hiccup we tracked down to the ECM. Always helps to have multiple ears and eyes when troubleshooting this stuff. The ECM would click, like when it would reset after tuning, and then the engine would stumble. Elff in the other thread I posted on this mentioned that it could be a corroded connector as that has happened in the past so we'll check that first and, if that doesn't resolve it, looks like a new ECM may be in order. Since it is an arbitrary thing I'm really hoping the plug issue resolves it.
Once the ECM issue gets resolved, we'll continue with tuning. Right now, if you hit WOT under 3k the engine will see about 4-5 percent KR. We may address this with tuning. Still want to do a VE tune on it as well to get those fuel tables better dialed in. Then we need to up the boost and tune PE with the MAF to deal with the greater boost levels.
So far, aside from the hiccup and oil leak today, things have gone smoothly. Issues like this are typical with doing bigger mods like this.
As an aside note, glad to see so many builds coming up on here these days. skersfan with his salvage build, my turbo build, the 200 mph build, the 800 and now 1000 whp builds...it's a good time to be on skyroadster!
|11-26-2015 01:22 AM|
|Robotech||Bill got busy this afternoon so no word from him yet on the whistle. He says a whistle could be normal, could be a problem so I am hopng he can get an idea of which kind of whistle this is after viewing the video.|
|11-25-2015 06:41 PM|
Now that I think about it the early LNFs had a different ECM. It was updated in '07 or '08, I can't remember which.
|11-25-2015 06:32 PM|
|Robotech||My understanding was you could license HP Tuners to tune any 07 LE5 Sky...That it wasn't car specific...|
|11-25-2015 06:29 PM|
|Gabes Redline||Awesome! Enough of the tune thread hijack. In all fairness, this thread is about Robo's Mod. Thank you so much Yogi!|
|11-25-2015 06:08 PM|
One more thing: If two '08s come, it is still $100 EACH. Just because Joe Blow pays $100 for 2 credits, any additional '08s will also have to pay $100 for their tunes.
One more thing #2: If he is tuning multiple models of the same motor, like 5 LNFs, each additional tune becomes easier (and quicker) for the Tuner. As long as the cars are equipped the same, what he (and the ECM) "learns" on the first LNF can be applied to the second LNF, and so on down the line. This only applies to the "initial tune" which helps the Tuner get to a baseline tune quicker. EACH WILL STILL NEED ON-THE-ROAD "LEARNING AND SUBSEQUENT FINE TUNING.
|11-25-2015 05:46 PM|
Originally Posted by Gabes Redline View Post
See, when you're doing this kind of tuning, it's a lot more than just flash the ECM and done. We're building a custom tune to my car with these modifications. The "tuning" part takes very little time actually, but the driving to log the data required to do that tuning can take days. Like I said, I'm getting started on Friday trying to get the <4000 rpm fueling locked in just using fuel trims. Sunday will be fine tuning that, open loop fueling, and getting the timing tables down. That could be an all day thing.
Even then, at the end of the day, we'll have probably a 75-90% tune and will need to fine tune it from there.
|11-25-2015 05:35 PM|
Originally Posted by Yogi View Post
|11-25-2015 05:34 PM|
|Gabes Redline||Didn't know my '08 would only need two credits, Thanks Yogi! Robo, please keep me posted on what his rate is, also if he'd consider doing it this Sunday as long as it doesn't hinder your tune time.|
|11-25-2015 05:20 PM|
|11-25-2015 05:12 PM|
Would make my life easier. You should see the mess I have to deal with tomorrow! Uhg.
I'll talk to him this weekend and see if he is up for tuning a couple cars and instructing others on how this all works. He use to do it a lot but he stopped some time ago. You'd probably need to buy credits for your car too since the only Sky he has setup in his HPTuners now is for 2007 2.4 Skys. LOL I think it's $50 per credit and our cars take two credits per model per year. (so to cover 06-10 Skys and Solstices you'd need a total of 34 credits...2 for 06 and then 8 for every model year thereafter to cover the base and turbo models of each brand...)
|11-25-2015 05:09 PM|
|Gabes Redline||I'm totally for donations!!|
|11-25-2015 05:02 PM|
|11-25-2015 05:00 PM|
|Robotech||Yea, color me green with envy that you guys already have a high quality Wide Band in the LNF...|
|11-25-2015 04:54 PM|
Good luck with the tune!
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