Ovtune ECU tuning experience/review
01-07-17, 04:09 PM
#256
Lexus Champion
Well according to Matthew (OV) they were supposed to release their results on Friday but after checking Facebook I guess they never got around to it... Seems like all their attention is mainly for the RC which makes sense it is their development car after all.. Guess we'll just have to wait and see.
01-07-17, 04:12 PM
#257
Well according to Matthew (OV) they were supposed to release their results on Friday but after checking Facebook I guess they never got around to it... Seems like all their attention is mainly for the RC which makes sense it is their development car after all.. Guess we'll just have to wait and see.
01-07-17, 06:27 PM
#258
No one has had any problems with this tune? My car went to crap after the tune and I'm unsure if it was the tune or something else. I think the ECU is just going downhill on me, which I'm not sure if thats a result of the tune or just having 103K miles? or ? The car was driving fine for 70 miles, and now all of a sudden on the drive home, i popped a p0303 pending, p0304, p2237 and p2240 half way home. Stopped the car and turned it back on and the O2 Sensor codes were gone, and drove about 5 minutes then started to lose all power again and CEL started flashing and boom, p0304 was back. I changed all the spark plugs, and swapped the coils from cylinder 4 to cylinder 2 and the code is still on cylinder 4. I ran a can of Seafoam. I checked manifold pressured to see if valves were sticking open, and everything is fine. It just seems like so many problems are blowing up all at once that it has to be the ECU going down. I last thought that it was the VVT getting stuck, because the problem would only occur at full engine temp and right after high load, but today it shut down when the engine was half way to warm after going pretty much all downhill.Then, again today while cruising on the freeway at like 60mph on a flat part. None of this makes sense.
EDIT -- Just ran a can of Seafoam spray through the intake, and it burnt a ton of carbon out. Drove it 15 miles, then gave it a nice amount of gas and ended up getting a misfire code. Get this p0306 now... 3rd cylinder to misfire, cylinder 6 is a first time sight for me. This sounds exactly like the carbon buildup issue does it not?? But I had the recall done. It just worries me that the tune was literally done right before all this started happening - it was done roughly 100miles before all of this began.
Another note, my car goes into limp mode as soon as I get a misfire code. I didn't know our car went into limp mode for a misfire?
EDIT -- Just ran a can of Seafoam spray through the intake, and it burnt a ton of carbon out. Drove it 15 miles, then gave it a nice amount of gas and ended up getting a misfire code. Get this p0306 now... 3rd cylinder to misfire, cylinder 6 is a first time sight for me. This sounds exactly like the carbon buildup issue does it not?? But I had the recall done. It just worries me that the tune was literally done right before all this started happening - it was done roughly 100miles before all of this began.
Another note, my car goes into limp mode as soon as I get a misfire code. I didn't know our car went into limp mode for a misfire?
Last edited by MDHLexus; 01-07-17 at 09:52 PM.
01-07-17, 10:08 PM
#259
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Join Date: Jun 2016
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Well according to Matthew (OV) they were supposed to release their results on Friday but after checking Facebook I guess they never got around to it... Seems like all their attention is mainly for the RC which makes sense it is their development car after all.. Guess we'll just have to wait and see.
01-08-17, 08:23 AM
#260
No one has had any problems with this tune? My car went to crap after the tune and I'm unsure if it was the tune or something else. I think the ECU is just going downhill on me, which I'm not sure if thats a result of the tune or just having 103K miles? or ? The car was driving fine for 70 miles, and now all of a sudden on the drive home, i popped a p0303 pending, p0304, p2237 and p2240 half way home. Stopped the car and turned it back on and the O2 Sensor codes were gone, and drove about 5 minutes then started to lose all power again and CEL started flashing and boom, p0304 was back. I changed all the spark plugs, and swapped the coils from cylinder 4 to cylinder 2 and the code is still on cylinder 4. I ran a can of Seafoam. I checked manifold pressured to see if valves were sticking open, and everything is fine. It just seems like so many problems are blowing up all at once that it has to be the ECU going down. I last thought that it was the VVT getting stuck, because the problem would only occur at full engine temp and right after high load, but today it shut down when the engine was half way to warm after going pretty much all downhill.Then, again today while cruising on the freeway at like 60mph on a flat part. None of this makes sense.
EDIT -- Just ran a can of Seafoam spray through the intake, and it burnt a ton of carbon out. Drove it 15 miles, then gave it a nice amount of gas and ended up getting a misfire code. Get this p0306 now... 3rd cylinder to misfire, cylinder 6 is a first time sight for me. This sounds exactly like the carbon buildup issue does it not?? But I had the recall done. It just worries me that the tune was literally done right before all this started happening - it was done roughly 100miles before all of this began.
Another note, my car goes into limp mode as soon as I get a misfire code. I didn't know our car went into limp mode for a misfire?
EDIT -- Just ran a can of Seafoam spray through the intake, and it burnt a ton of carbon out. Drove it 15 miles, then gave it a nice amount of gas and ended up getting a misfire code. Get this p0306 now... 3rd cylinder to misfire, cylinder 6 is a first time sight for me. This sounds exactly like the carbon buildup issue does it not?? But I had the recall done. It just worries me that the tune was literally done right before all this started happening - it was done roughly 100miles before all of this began.
Another note, my car goes into limp mode as soon as I get a misfire code. I didn't know our car went into limp mode for a misfire?
Have you tried contacting OVtune and seeing if they could reflash your ecu back to stock?
I know most tuners save your stock ecu configuration just incase something does happen or you decide you want to go back to stock.
If you could go back to stock ecu I think you would hav a better chance of figuring out what is going on. (atleast you could eliminate the ecu as the problem).
01-08-17, 01:22 PM
#261
No one has had any problems with this tune? My car went to crap after the tune and I'm unsure if it was the tune or something else. I think the ECU is just going downhill on me, which I'm not sure if thats a result of the tune or just having 103K miles? or ? The car was driving fine for 70 miles, and now all of a sudden on the drive home, i popped a p0303 pending, p0304, p2237 and p2240 half way home. Stopped the car and turned it back on and the O2 Sensor codes were gone, and drove about 5 minutes then started to lose all power again and CEL started flashing and boom, p0304 was back. I changed all the spark plugs, and swapped the coils from cylinder 4 to cylinder 2 and the code is still on cylinder 4. I ran a can of Seafoam. I checked manifold pressured to see if valves were sticking open, and everything is fine. It just seems like so many problems are blowing up all at once that it has to be the ECU going down. I last thought that it was the VVT getting stuck, because the problem would only occur at full engine temp and right after high load, but today it shut down when the engine was half way to warm after going pretty much all downhill.Then, again today while cruising on the freeway at like 60mph on a flat part. None of this makes sense.
It's possible that the 4GR-FSE isn't built to handle the increase in RPMs the way the 2GR-FSE has been able to sustain 7,000+ RPMs (as well as the 2GR-FE used in the Lotus Evora/S/400)....
01-08-17, 01:42 PM
#262
You're probably the one member here that I know of with an IS250 that's tuned for the 7200 RPM rev limit.
It's possible that the 4GR-FSE isn't built to handle the increase in RPMs the way the 2GR-FSE has been able to sustain 7,000+ RPMs (as well as the 2GR-FE used in the Lotus Evora/S/400)....
It's possible that the 4GR-FSE isn't built to handle the increase in RPMs the way the 2GR-FSE has been able to sustain 7,000+ RPMs (as well as the 2GR-FE used in the Lotus Evora/S/400)....
01-09-17, 04:05 PM
#264
That is what I was thinking. I pulled out the lower intake plenum and cleaned off the valves with Techron. I just let the Techron puddle on top of the valves and took a wire brush to it. I drove 100 miles just fine after, and then got to my house, let the car sit, drove it for 10 miles and I pulled another p0306. The valves are pretty well cleaned, I don't understand why the car would be switching into limp mode...
01-19-17, 02:37 PM
#265
No one has had any problems with this tune? My car went to crap after the tune and I'm unsure if it was the tune or something else. I think the ECU is just going downhill on me, which I'm not sure if thats a result of the tune or just having 103K miles? or ? The car was driving fine for 70 miles, and now all of a sudden on the drive home, i popped a p0303 pending, p0304, p2237 and p2240 half way home. Stopped the car and turned it back on and the O2 Sensor codes were gone, and drove about 5 minutes then started to lose all power again and CEL started flashing and boom, p0304 was back. I changed all the spark plugs, and swapped the coils from cylinder 4 to cylinder 2 and the code is still on cylinder 4. I ran a can of Seafoam. I checked manifold pressured to see if valves were sticking open, and everything is fine. It just seems like so many problems are blowing up all at once that it has to be the ECU going down. I last thought that it was the VVT getting stuck, because the problem would only occur at full engine temp and right after high load, but today it shut down when the engine was half way to warm after going pretty much all downhill.Then, again today while cruising on the freeway at like 60mph on a flat part. None of this makes sense.
EDIT -- Just ran a can of Seafoam spray through the intake, and it burnt a ton of carbon out. Drove it 15 miles, then gave it a nice amount of gas and ended up getting a misfire code. Get this p0306 now... 3rd cylinder to misfire, cylinder 6 is a first time sight for me. This sounds exactly like the carbon buildup issue does it not?? But I had the recall done. It just worries me that the tune was literally done right before all this started happening - it was done roughly 100miles before all of this began.
Another note, my car goes into limp mode as soon as I get a misfire code. I didn't know our car went into limp mode for a misfire?
EDIT -- Just ran a can of Seafoam spray through the intake, and it burnt a ton of carbon out. Drove it 15 miles, then gave it a nice amount of gas and ended up getting a misfire code. Get this p0306 now... 3rd cylinder to misfire, cylinder 6 is a first time sight for me. This sounds exactly like the carbon buildup issue does it not?? But I had the recall done. It just worries me that the tune was literally done right before all this started happening - it was done roughly 100miles before all of this began.
Another note, my car goes into limp mode as soon as I get a misfire code. I didn't know our car went into limp mode for a misfire?
01-19-17, 02:50 PM
#266
Lexus Champion
Now I guess we could argue that by increasing the rev limit on the 250 that maybe it caused the issue to pop up sooner than it should have, but I don't have the proper knowledge to explain how that could even be a possibility.
Look honestly, the way I see it, if you own a 250 don't tune it if your worried about the carbon issue. Even though I doubt the tune is to blame, if it helps you sleep better at night than just avoid it. BUT, if you have an IS350 on the other hand, then I say do it. Since we don't have that issue..
My car has been flawless so far after 6 weeks of being tuned and I don't regret my decision at all. And I take it to 7400 several times a day lol.
01-19-17, 09:48 PM
#268
Intermediate
Thread Starter
I have jumped to the 7400rpm limit with my is350 and so far have not had any problems. Of course its a bit cold out where I am and I don't drive like Tro209 so it might be too soon to speak.
01-20-17, 07:03 AM
#269
Lexus Champion
Well for me it's anywhere from 40-52 degrees daily. So not that cold but still, point is I have no problems yet. I think the main thing is just having an IS350. The engine can handle more abuse because it's built tougher than 2GR-FE and the 4GR-FSE. Also does anyone know if the IS250 even makes power past its stock rev limit??? If it doesn't than I wouldnt recommend pushing it that far. Only reason I have the 7400 limit is because the 350 makes power all the way up to 7400rpm so it's more beneficial.