Yes I know another t-max question ????

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Aug 16, 2012 | 02:42 PM

#11

nevil

Seasoned HDF Member

Joined: Jul 2008

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From: southeast PA

Assuming that you determine you have no exhaust leaks, check for intake leaks.
Something else to check are your O2 sensors. Link to the software and then Monitor. Both sensor readings on the bottom should read 19.36 after a couple of seconds. If not, you have a bad O2 sensor, or both.
If that's good, the next step that I recommend is to run a Data Collection through Auto Support and send to Zippers. It is a running log and will give them a better idea of what's going on. A tech will look over the results and may revise the map. They are kind of swamped at this time of year, but someone will get back to you.

Aug 16, 2012 | 04:24 PM

#12

EastBay_Solo

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From: Nor Cal East Bay

well do .. i tighten down that bolt still kinda shows thread? re installed map. next i have to take it for a test ride and see if that helped. how do you check for an intake lake? i did install a big sucker just recently.

Aug 16, 2012 | 04:43 PM

#13

EastBay_Solo

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From: Nor Cal East Bay

Macnab_sf it is map #756 I will do the rag test and see if it leaking. Im going to link it up and check the 02 sensor readings and see if they are at 19.36 like Nevil suggested.

Last edited by EastBay_Solo; Aug 16, 2012 at 04:54 PM.

Aug 16, 2012 | 05:41 PM

#14

SURFOR Chop

Elite HDF Member

Joined: Apr 2007

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From: Seattle, WA

You can check for intake leak by starting the motor and idle it ... then using a volatile petroleum product such as a bottle of propane or carb cleaner direct some of it around where the intake flanges meet the head ... if there is a leak, the idle will seem to speed up a little (the motor is drawing in more fuel from the leak) ...

Aug 16, 2012 | 06:51 PM

#15

Squirrel67

Cruiser

Joined: Sep 2010

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From: 3rd Rock

If you look closely at the pic, It looks like the threads on that exhaust stud are messed up. If they are remove your pipe double nut the stud(s), remove and replace the exhaust studs in the head.

Aug 17, 2012 | 12:48 AM

#16

EastBay_Solo

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From: Nor Cal East Bay

Squirrel67 I took a good look at the bolt. Its fine what I see there is the unthreaded portion of stud bolt. Looks like the head bolt should be screwed in more to the cylinder head. Didnt have time to do **** had to run around with the wife today. So tomorrow I will pull off the fat cat and screw that head bolt in. Looks like it backed out. Thanks again to all those who chimed with there input.

Aug 18, 2012 | 12:20 PM

#17

EastBay_Solo

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From: Nor Cal East Bay

Ok heres an update. I took the pipe off and pulled the gaskets out. What I found was a metal ring gasket. Heres a photo you be the judge. I went to HD and bought the screaming eagle gasket. Thats what D&D recomended I use for there fat cat pipe after making a quick call to there tech line. Installed the gasket pipe sits way better in the cylinder head ports. I repainted the heat shields with some bbq rust-oleum paint with a 1200 thresh hold. Came out great. Theres a guy on his forum who used this paint with no problem. So its all installed now im going to hook back up to t-max and reload the map and go from there. Got my fingeres crossed.