IS200t Downpipe
09-03-19, 01:05 PM
#181
Thanks
09-03-19, 02:55 PM
#182
Intermediate
The bracket above the assembly to the charge pipe will need to be removed, then remove the section in front of the charge pipe (just loosen the clamp) and then their are 2 nuts on the metal 90 degree angle part (Not sure what the part is called, but the tube is connected) that will have to be removed.
all of this is actually the easy part, getting to all the heat shield bolts is kind of a pain, then just slide out the upper heat shield. (you still need to remove the lower heat shield which is only 3 bolts I believe.
all of this is actually the easy part, getting to all the heat shield bolts is kind of a pain, then just slide out the upper heat shield. (you still need to remove the lower heat shield which is only 3 bolts I believe.
Last edited by m1919; 09-03-19 at 05:58 PM.
02-14-20, 10:28 AM
#183
I can't answer all of your questions but I can answer a few.
IMO a downpipe is worth it with a tune. I'm running a TTi catted downpipe and i can definitely feel the difference over the stock one.
Regarding the CEL, after installing the TTi downpipe and driving around for awhile, it threw a p0420 code (not sure why it did). Installing a 90 degree spacer with a smaller opening got rid of the P0420 code but triggered a P0137 code. I tried drilling a 1/2" hole on the spacer but it did not help. After clearing the code and driving just less than 50 miles, CEL with the same code appeared again. I'm going to test out other spacers next and hopefully the CEL will be gone for good.
IMO a downpipe is worth it with a tune. I'm running a TTi catted downpipe and i can definitely feel the difference over the stock one.
Regarding the CEL, after installing the TTi downpipe and driving around for awhile, it threw a p0420 code (not sure why it did). Installing a 90 degree spacer with a smaller opening got rid of the P0420 code but triggered a P0137 code. I tried drilling a 1/2" hole on the spacer but it did not help. After clearing the code and driving just less than 50 miles, CEL with the same code appeared again. I'm going to test out other spacers next and hopefully the CEL will be gone for good.
Last edited by tnilc; 02-14-20 at 10:33 AM.
02-15-20, 02:08 PM
#184
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I also hate the way the car sounds with the downpipe but I can’t go back now after being used to the power. Especially with the OV tune now too. Did your car also have a horrible rasp/exhaust leak sound when hitting the gas from a stop? Thats what I hate about it the most, it sounds like I have an exhaust leak but I’ve had it checked out at a shop and they tell me everything is normal
02-15-20, 06:51 PM
#185
I’m currently back to stock because I was having an issue with my car and wanted to rule out the tune as being the cause. It honestly sucks driving the car stock after experiencing the tune.
The tune doesn’t give insane power or anything but the turbo spools much quicker and the artificial throttle delay is removed. Worth the cost in my opinion.
The tune doesn’t give insane power or anything but the turbo spools much quicker and the artificial throttle delay is removed. Worth the cost in my opinion.
02-15-20, 06:55 PM
#186
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Thanks for replying, question, where the issues caused by the tune? what kind of issues were you having if you don't mind sharing, I'll really appreciate your feedback.
02-15-20, 06:59 PM
#187
I’m currently back to stock because I was having an issue with my car and wanted to rule out the tune as being the cause. It honestly sucks driving the car stock after experiencing the tune.
The tune doesn’t give insane power or anything but the turbo spools much quicker and the artificial throttle delay is removed. Worth the cost in my opinion.
The tune doesn’t give insane power or anything but the turbo spools much quicker and the artificial throttle delay is removed. Worth the cost in my opinion.
I went back to stock too because my vacuum regulator crapped out, then I threw a P0001 code which was actually a P0137 for my O2 sensor. Turned out my O2 sensor rattled loose lol.
I plan to flash back to my OVTune tomorrow.
02-15-20, 07:04 PM
#188
It ended up being my spark plugs that was causing it because it hasn’t happened since I replaced them.
I don’t think the tune caused the wear on the plugs but I think it accelerated it. I flashed the car around 33k miles and started having the issue around 37k miles. Lexus recommends replacing spark plugs at 40k so mine were a little premature.
02-15-20, 07:11 PM
#189
The issue I was having was the car would start backfiring like it was bouncing off the rev limiter at around 5k rpm when I floored it. It would backfire and hesitate but eventually would go. Overall power was down too.
It ended up being my spark plugs that was causing it because it hasn’t happened since I replaced them.
I don’t think the tune caused the wear on the plugs but I think it accelerated it. I flashed the car around 33k miles and started having the issue around 37k miles. Lexus recommends replacing spark plugs at 40k so mine were a little premature.
It ended up being my spark plugs that was causing it because it hasn’t happened since I replaced them.
I don’t think the tune caused the wear on the plugs but I think it accelerated it. I flashed the car around 33k miles and started having the issue around 37k miles. Lexus recommends replacing spark plugs at 40k so mine were a little premature.
Then when my CEL started, went back to stock to see if that was the issue, turns out it wasn't at all. I'll be glad to go back to my tune. Mathew said things look good, just needed some tweaks and asked what octane gas I was using.
02-15-20, 07:12 PM
#190
02-15-20, 07:21 PM
#191
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so the tune gets rid of the throttle delay and makes the car a little more enjoyable to drive? anything you didn't like about the tune? I'm on the fence about ordering but looking to get rid of the annoying throttle on this car.
02-15-20, 07:33 PM
#192
I like the standard flash they offer but I didn’t like the custom tuning I tried out. I think the custom tune they sent me was too aggressive and put my car into limp mode. It was sort of a disaster to be honest and I thought my car was dead for sure because it wouldnt turn on afterwards. It ended up being fine after sitting for a while though so I went back to the standard flash.
02-15-20, 08:02 PM
#194
I bought the tune when it first came out so they sent me the first file they released (1.01) and the stock ecu file. When 1.02 was released they also sent that to me.
I also opted to do the custom tuning because of my downpipe so they sent me 2 custom flashes after doing some datalogging.
After the bad experience I had with the custom tune I decided to just stick with the standard flashes because its more conservative and safer.
I also opted to do the custom tuning because of my downpipe so they sent me 2 custom flashes after doing some datalogging.
After the bad experience I had with the custom tune I decided to just stick with the standard flashes because its more conservative and safer.