Decat

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Decat

Decat

Mr_Woods
Junior Member

42

26-06-2023, 06:22 AM

#1

Just got a decat manifold put on my is200, on idle and when pulling away it only runs on 3 cylinders and the em light and trc light come on, then all 6 fire up and all is good, is that what happens when decat is put on and will the car stop doing it after a while?

thanks

Mr_Woods

26-06-2023, 06:22 AM #1

Just got a decat manifold put on my is200, on idle and when pulling away it only runs on 3 cylinders and the em light and trc light come on, then all 6 fire up and all is good, is that what happens when decat is put on and will the car stop doing it after a while?

thanks

Sparkystav
Administrator

14,683

26-06-2023, 10:38 AM

#2

That's not normal at all mate!

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[Image: LexuS-Copy.jpg]

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Sparkystav

26-06-2023, 10:38 AM #2

That's not normal at all mate!

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[Image: LexuS-Copy.jpg]

Read my thread here: The Evolution of my Turbo Lexus from NA-Supercharged-Twin Turbo-Massive Single
Please leave your comments.

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Lexuspat
Administrator

6,827

27-06-2023, 01:19 PM

#3

thats defo not right, cant see how a decat will do that

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Lexuspat

27-06-2023, 01:19 PM #3

thats defo not right, cant see how a decat will do that

[Image: FB_IMG_1474048273787_zpsnbfq6a3s.jpg]

[SIZE="2"]Click to visit my Project Thread or my Flickr Account[/SIZE]

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Mr_Woods
Junior Member

42

30-06-2023, 10:02 PM

#4

Long time guys, little update, so car is running a lot better now, trc light just needed resetting as the clutch was done on the car so that works fine and the running has been sorted now too, thank you is200turbo for the spacer idea, got those and put them on, also found that the garage who did the work plugged the lambdas the opposite way round, car now runs like a dream, fuel economy has gone down but that's what happens with a decat, decent remap should help sort that.

Mr_Woods

30-06-2023, 10:02 PM #4

Long time guys, little update, so car is running a lot better now, trc light just needed resetting as the clutch was done on the car so that works fine and the running has been sorted now too, thank you is200turbo for the spacer idea, got those and put them on, also found that the garage who did the work plugged the lambdas the opposite way round, car now runs like a dream, fuel economy has gone down but that's what happens with a decat, decent remap should help sort that.

Wayne
Senior Member

607

01-07-2023, 12:12 AM

#5

Remap? You running standalone, cuz whatever you do to the standard ECU will be a waste of time and money. The ****** will just rewrite itself.

Wayne

01-07-2023, 12:12 AM #5

Remap? You running standalone, cuz whatever you do to the standard ECU will be a waste of time and money. The ****** will just rewrite itself.

Lexuspat
Administrator

6,827

02-07-2023, 11:48 PM

#6

unfortunately wayne is correct the lexus is fitted with a self learning ecu which means any map you put on when u start the car again will go back to the original setup

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Lexuspat

02-07-2023, 11:48 PM #6

unfortunately wayne is correct the lexus is fitted with a self learning ecu which means any map you put on when u start the car again will go back to the original setup

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[SIZE="2"]Click to visit my Project Thread or my Flickr Account[/SIZE]

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Mr_Woods
Junior Member

42

14-07-2023, 09:38 PM

#7

ooh right ok, so worth investing in mappable ecu then?

Mr_Woods

14-07-2023, 09:38 PM #7

ooh right ok, so worth investing in mappable ecu then?

Sparkystav
Administrator

14,683

15-07-2023, 02:52 AM

#8

is it no better with the spacers on the sensors?

the two sensor control 3 cylinders each so could be related to that

[Image: LexuS-Copy.jpg]

Read my thread here: The Evolution of my Turbo Lexus from NA-Supercharged-Twin Turbo-Massive Single
Please leave your comments.

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Sparkystav

15-07-2023, 02:52 AM #8

is it no better with the spacers on the sensors?

the two sensor control 3 cylinders each so could be related to that

[Image: LexuS-Copy.jpg]

Read my thread here: The Evolution of my Turbo Lexus from NA-Supercharged-Twin Turbo-Massive Single
Please leave your comments.

OutlawJapClub Admin Team

Wayne
Senior Member

607

15-07-2023, 09:14 AM

#9

Mr_Woods ooh right ok, so worth investing in mappable ecu then?

In my opinion not unless your boosting. The gains you would get would be far too costly. You've got the cost of the ecu, the hassle of marrying it to your loom and then you've got the cost of having it tuned.

Wayne

15-07-2023, 09:14 AM #9

Mr_Woods ooh right ok, so worth investing in mappable ecu then?

In my opinion not unless your boosting. The gains you would get would be far too costly. You've got the cost of the ecu, the hassle of marrying it to your loom and then you've got the cost of having it tuned.

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