Reduced Engine Power
Tech Contributor
Joined: Apr 2007
Posts: 10,924
Likes: 78
From: Forney Texas
I have a copy of his tune and the 1514 table is maxed out at 4.10 in all cells.
Was told by a tuner that the P0101 MAF fail table should have a value of 255 instead of 0 and that's what's causing this, but my car has a value of 0 and I don't have this problem. Waiting for Z06Wanted to change the value and try some launches.
Was told by a tuner that the P0101 MAF fail table should have a value of 255 instead of 0 and that's what's causing this, but my car has a value of 0 and I don't have this problem. Waiting for Z06Wanted to change the value and try some launches.
Melting Slicks
Joined: Feb 2006
Posts: 2,163
Likes: 5
From: Houston
I have a copy of his tune and the 1514 table is maxed out at 4.10 in all cells.
Was told by a tuner that the P0101 MAF fail table should have a value of 255 instead of 0 and that's what's causing this, but my car has a value of 0 and I don't have this problem. Waiting for Z06Wanted to change the value and try some launches.
Was told by a tuner that the P0101 MAF fail table should have a value of 255 instead of 0 and that's what's causing this, but my car has a value of 0 and I don't have this problem. Waiting for Z06Wanted to change the value and try some launches.
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Tech Contributor
Joined: Apr 2007
Posts: 10,924
Likes: 78
From: Forney Texas
I have 79lb injectors and haven't had to scale anything down and my 1514 table isn't maxed out. I don't get it. I guess I better keep quiet before I start having this problem. 
Another problem I noticed with Z06Wanted's tune is that the ETC Scalar is set at .0355. That's going the wrong way for a 90mm from stock which is .0255. It should be .0192. I'm sure that's throwing off calculations somewhere too.
Another problem I noticed with Z06Wanted's tune is that the ETC Scalar is set at .0355. That's going the wrong way for a 90mm from stock which is .0255. It should be .0192. I'm sure that's throwing off calculations somewhere too.
Melting Slicks
Joined: Feb 2006
Posts: 2,163
Likes: 5
From: Houston
I have 79lb injectors and haven't had to scale anything down and my 1514 table isn't maxed out. I don't get it. I guess I better keep quiet before I start having this problem.
Another problem I noticed with Z06Wanted's tune is that the ETC Scalar is set at .0355. That's going the wrong way for a 90mm from stock which is .0255. It should be .0192. I'm sure that's throwing off calculations somewhere too.
Another problem I noticed with Z06Wanted's tune is that the ETC Scalar is set at .0355. That's going the wrong way for a 90mm from stock which is .0255. It should be .0192. I'm sure that's throwing off calculations somewhere too.
Tech Contributor
Joined: Apr 2007
Posts: 10,924
Likes: 78
From: Forney Texas
I'll have to look at my logs when I get home. I'm running a 2-bar. Are you still running a MAF? The dynamic cylinder air calculations get cut in half when the MAF is removed, so maybe that explains some things.
Last edited by BLOWNBLUEZ06; May 14, 2009 at 12:00 PM.
Tech Contributor
Joined: Apr 2007
Posts: 10,924
Likes: 78
From: Forney Texas
Well, he went out and tried it and it still goes into reduced power after changing the P0101 value to 255 from 0. It threw a 1516 code once and just the 1278 code the second time. I still suspect a possible voltage issue due to grounds. We'll see.
Le Mans Master
Joined: Oct 2003
Posts: 8,863
Likes: 86
From: PA
St. Jude Donor '08
I have a copy of his tune and the 1514 table is maxed out at 4.10 in all cells.
Was told by a tuner that the P0101 MAF fail table should have a value of 255 instead of 0 and that's what's causing this, but my car has a value of 0 and I don't have this problem. Waiting for Z06Wanted to change the value and try some launches.
Was told by a tuner that the P0101 MAF fail table should have a value of 255 instead of 0 and that's what's causing this, but my car has a value of 0 and I don't have this problem. Waiting for Z06Wanted to change the value and try some launches.
i did though have TB connector issue that would cause intermittent reduced engine power. look at the tangs to see if there is any issues there. also i would have 1514 code issues with my 427 twin turbo. had to "fudge" the ifr and ve table to "fake" the g/per cyl values. doubt that that his issue
Melting Slicks
Joined: Jul 2007
Posts: 2,087
Likes: 11
From: Austin TX
I have 79lb injectors and haven't had to scale anything down and my 1514 table isn't maxed out. I don't get it. I guess I better keep quiet before I start having this problem.
Another problem I noticed with Z06Wanted's tune is that the ETC Scalar is set at .0355. That's going the wrong way for a 90mm from stock which is .0255. It should be .0192. I'm sure that's throwing off calculations somewhere too.
Another problem I noticed with Z06Wanted's tune is that the ETC Scalar is set at .0355. That's going the wrong way for a 90mm from stock which is .0255. It should be .0192. I'm sure that's throwing off calculations somewhere too.
Tech Contributor
Joined: Apr 2007
Posts: 10,924
Likes: 78
From: Forney Texas
The highest value I can find in a WOT log on my car is 1.56
Melting Slicks
Joined: Feb 2006
Posts: 2,163
Likes: 5
From: Houston
I threw up a thread there about the ETC scalar. I am just wondering if it throws off other calculations. For the record, he changed the values and it did nothing for him and it is still going to REP. I just found out he has a bad battery. He's going to replace that since we know he needs it anyways. Even though I doubt it will, it would be nice if it made the problem go away. The dynamic cylinder air is 2.58 in one of the cells right before it dies.
The highest value I can find in a WOT log on my car is 1.56
The highest value I can find in a WOT log on my car is 1.56
Le Mans Master
Joined: Feb 2007
Posts: 6,674
Likes: 57
From: Mt Pleasant, TN
Ive had a lot of problems with those, they dont crimp the wire good enough and they can come out of the metal clips. I take them apart and soilder all the of connections in the plug ends. Its worth a look.
Tech Contributor
Joined: Apr 2007
Posts: 10,924
Likes: 78
From: Forney Texas
Drifting
Joined: Aug 2006
Posts: 1,629
Likes: 6
From: Little Rock Arkansas
It looks like we got Shane's car fixed today. We bolted my slicks up and he made a bunch of dig pulls and it has yet to set the reduced engine power. A good solder and heat shrink connection to the T/B harness and a good IAT sensor makes all the difference. Shane owes me a new set of slicks. lol
Butt connectors on a T/B harness? WTF
Butt connectors on a T/B harness? WTF