Cutting Out While WOT - MustangForums.com


2005-2014 Mustangs Discussions on the latest S197 model Mustangs from Ford.
Sponsored by:
Sponsored by:

Reply
 
 
 
Thread Tools Search this Thread
Old 11-26-2011, 09:49 AM   #1
davisr014
2nd Gear Member
Thread Starter
 
davisr014's Avatar
 
Join Date: Jan 2006
Location: Honolulu, HI
Posts: 236
Question Cutting Out While WOT

The car runs great driving around town, but if you go WOT in second, it appears to be missing. The car is throwing no codes or warning lights and does not indicate a lean condition on AF meter. I do not believe it is in the tune, since it is the same tune Iíve been running for 8 or so months. I have so far disconnected battery, cleaned TB, MAF and Air Filter all of which looked cleaned. This did not fix problem, I then inspected the 4 random sparkplugs, which appeared normal. I will try and attach pic. My intended next step is to replace sparkplugs, they have ~8K miles on them. With it being kinda expensive to replace them is there anything to try before replacing. I did also turn of TCS to verify that that was not the cause.
Thank You for your help.
The car has ~24000 miles on it.
Currently running 3 1/4 inch pulley with updated tune.
Attached Thumbnails
Cutting Out While WOT-018.jpg  
davisr014 is offline   Reply With Quote
Old 11-26-2011, 10:11 AM   #2
siggyfreud
5th Gear Member
 
siggyfreud's Avatar
 
Join Date: Oct 2009
Location: Oregon
Posts: 2,647
Default

Are you using the stock intake tube?
siggyfreud is offline   Reply With Quote
Old 11-26-2011, 10:21 AM   #3
hammeron
6th Gear Member
 
hammeron's Avatar
 
Join Date: May 2006
Location: Nicely done
Posts: 11,778
Default

seems like you are on the right track and plugs might be
the next thing to consider. if it feels normal when WOT in
third gear, maybe you are getting a little belt slip in 2nd?
if it's not the belt, then i agree with trying new plugs (with
.032 gap), next.
hammeron is offline   Reply With Quote
Old 11-26-2011, 10:35 AM   #4
2005Redfire6
6th Gear Member
 
Join Date: Jul 2008
Location: Acworth, GA
Posts: 12,260
Default

Have you changed the fuel filter lately? Just a thought.
2005Redfire6 is offline   Reply With Quote
Old 11-26-2011, 10:40 AM   #5
MrSandman
5th Gear Member
 
MrSandman's Avatar
 
Join Date: Oct 2006
Location: MO
Posts: 3,234
Default

Dumb question..but is traction control turned off?
MrSandman is offline   Reply With Quote
Old 11-26-2011, 10:52 AM   #6
157dB
Cut & Paste Expert
 
157dB's Avatar
 
Join Date: May 2007
Location: NW Arkansas
Posts: 13,322
Default

Have you determined proper fuel pressure at WOT?
The proper AF would indicate proper pressure...
Are you sure BOTH pumps are running?
Once again, the AF is good during the missing.
How about a nighttime inspection of the
spark plug wires for signs of leakage?
The OEM coil is known for high RPM missing as well...

Maybe check the mounting hardware on your coil pack bracket?

Last edited by 157dB; 11-26-2011 at 10:57 AM.
157dB is offline   Reply With Quote
Old 11-26-2011, 12:29 PM   #7
siggyfreud
5th Gear Member
 
siggyfreud's Avatar
 
Join Date: Oct 2009
Location: Oregon
Posts: 2,647
Default

Quote:
Originally Posted by siggyfreud View Post
Are you using the stock intake tube?
I ask because I was around your power level when I found the stock rubber intake tube starting to pinch shut under WOT. It would cause the engine to cut out.
siggyfreud is offline   Reply With Quote
Old 11-26-2011, 12:59 PM   #8
davisr014
2nd Gear Member
Thread Starter
 
davisr014's Avatar
 
Join Date: Jan 2006
Location: Honolulu, HI
Posts: 236
Default

Thank you guys for the input.
Replaced fuel filter 4-500 miles ago.
Still missed with TCS off
It has the upgraded intake tube that cam with breenspeed's stage 1 kit.
It could be belt slip. I didnt mention it does in third, just doesn't do it has much.
I'll give sparkplugs a try. I expect I'll go with HTO, unless any other recommendations.

Thanks again.
davisr014 is offline   Reply With Quote
Old 11-26-2011, 01:44 PM   #9
SCCAGT
3rd Gear Member
 
Join Date: Nov 2006
Location: Kansas City
Posts: 960
Default

You are supercharged. Its the plugs.
SCCAGT is offline   Reply With Quote
Old 11-26-2011, 02:16 PM   #10
MrSandman
5th Gear Member
 
MrSandman's Avatar
 
Join Date: Oct 2006
Location: MO
Posts: 3,234
Default

Can you do some data logging with your handheld and send the info to brenspeed?
MrSandman is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Snow performance stage 2 MAF boos cooler install jwog666 Pipes, Boost & Juice 5 04-04-2016 04:23 PM
Rear Package Shelf jrrhd73must Classic Mustang General Discussion 2 10-02-2015 09:17 PM
Colgan Custom Bra for 2014 Mustang mdg Parts For Sale 0 10-01-2015 07:04 AM
4r70w torque converter q's guitarman376 4.6L (1996-2004 Modular) Mustang 0 09-30-2015 05:54 PM
Corsa GT500 Sport Quad Tip on a 13 GT/CS FivePointToTheOh 2005-2014 Mustangs 2 09-21-2015 01:21 PM


Tags
2011, 50, 9s, beach, car, cuts, fast, fenders, mustang, open, rolled, runing, throttle, virgina, virginia, wide

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -5. The time now is 12:01 PM.