Question about Ford Mustang
What year is your Mustang? Is there a ecu connector / OBD2 switch under the driver side dash? If so the codes can be cleared manually. I had a similar issue on my gf toyota avalon and I read that sometimes a ecu fails to recognize the work being done mechanically. Another trick with eliminating the problem of a engine light/code showing try and disconnect your negative battery cable from 20 minutes then reconnect it drive car for a bit see if code is gone/comes back. Hope this helps ya
Posted on Nov 17, 2013
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
I had the same problem with My 1990 F150 300 6cylinder 4x4.....I cahnged all the same things you did, finally I sprayed a can of Gumout through the throttle body and it worked and ran great. Now I add fuel injector cleaner to the gas and a regular clean with the gumout and the problem has'nt come back. Good Luck to you and hope it works!
Posted on Oct 06, 2008
SOURCE: 94 camry. 2.2 fed emissions.
Before we both knock ourselves out with fuel injector testing. Hook up a Digital voltmeter (DVM) to upstream O2 sensor and lets see how she is burning. Remember positive lead of DVM to signal wire and negative lead to ground. Anything above 550 mV is rich anything below 350mV is lean. Be mindful that an exhaust leak the size of a pin hole in this region can cause a rough idle. A healthy reading should bounce between 550mV and 350 mV.
Next to test is O2 is working block off air in take making mixture rich and see what O2 says about it . Then pull off a vacuum hose (a lean condition) and see if DVM drops to 200to 300mV's.
Keep me posted.
Posted on May 10, 2010
Tips for a great answer:
Mar 21, 2015 | Toyota 4Runner Cars & Trucks
Mar 04, 2013 | Cars & Trucks
May 17, 2012 | 2003 Chevrolet Cavalier
May 03, 2012 | 1994 Chevrolet Caprice Classic
Apr 07, 2011 | 1987 Plymouth Reliant
Jan 03, 2011 | Jeep Liberty Cars & Trucks
Nov 27, 2010 | Saturn SL2 Cars & Trucks
Nov 01, 2010 | 1990 Plymouth Sundance
Oct 21, 2010 | 1993 Dodge Caravan
Nov 30, 2009 | 1993 Chevrolet Lumina
16 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: