07 shelby gt po642 code

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Apr 9, 2011 | 01:28 PM

bowman shelby

Thread Starter

Joined: Apr 2011

Posts: 2

From: Oregon

07 shelby gt po642 code

po642 code car is hard to start and runs rough. any one have any ideas?

Apr 9, 2011 | 04:32 PM

SpartaPerformance

4th Gear Member

Joined: Apr 2010

Posts: 1,291

From: Long Island, New York

This DTC is set due to an under voltage condition of the VREF circuit

• VREF circuit short to ground
• Damaged sensor
• Incorrect harness connection

Do anything to the vehicle recently that involved disconnecting any wiring??

Apr 10, 2011 | 11:40 PM

bowman shelby

Thread Starter

Joined: Apr 2011

Posts: 2

From: Oregon

dead shelby

the car will start some times and run about 200 rpm and die. Spark plugs look wet with fuel acts like no spark

Apr 11, 2011 | 07:17 AM

Nuke

6th Gear Member

Joined: Jun 2007

Posts: 16,182

From: PA to KY ('07) to IL ('09) to MS ('10) to FL ('11)

Hope this helps: http://www.justanswer.com/ford/4ptjo...191-p0642.html

Apr 14, 2012 | 07:54 AM

samer_143

Joined: Apr 2012

Posts: 1

From: TEXAS

same problem

Quote:

Originally Posted by bowman shelby

po642 code car is hard to start and runs rough. any one have any ideas?

Hi (bowman shelby),
have you solved the your car problem?? because I have the same problem in my Mustang that RPM won't go above 3000RPM and showing the same code!!!
If you have fixed the problem , please pass it to me

I am struggling