Service engine soon light.

Tiny
SEBASTIAN RANGEL
  • MEMBER
  • 2002 FORD MUSTANG
  • 6 CYL
  • 2WD
  • MANUAL
  • 96,000 MILES
On a 2002 ford mustang v6 5speed replaced a EGR valve and solve the service engine light for about a 2 months and recently drive for about 85 miles and light comes back again stays on since, before light come back ussually drive short drives not more than 40 miles and was running fine.
Monday, February 14th, 2011 AT 6:42 PM

26 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Scan the computer for code/s might not be for the EGR valve this time.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please run down this guide and report back.
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Monday, February 14th, 2011 AT 6:52 PM
Tiny
BOB ARGO
  • MEMBER
  • 3 POSTS
  • 2002 FORD MUSTANG
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 27,000 MILES
My Check Engine light came on and carried it to tech. And he said that the fuel sensor detected the
gas tank to full or it can do it if tank is close to empty.
I'm guilty of topping the tank as much as I can, even
overfilling sometime. I've never heard of this before and why didn't it go off over the past years that I
have overfilled? Is this a true reading?
Thanks, Bob
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Thursday, April 4th, 2019 AT 1:59 PM (Merged)
Tiny
BLACKOP555
  • MECHANIC
  • 10,386 POSTS
Can you give me the exact code?
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Thursday, April 4th, 2019 AT 1:59 PM (Merged)
Tiny
BOB ARGO
  • MEMBER
  • 3 POSTS
Sorry, I did not get code. So, I guess this ends my
question. After surfing around your web page, I
didn't know there were so many codes.
Thanks for your help. Bob Argo
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Thursday, April 4th, 2019 AT 1:59 PM (Merged)
Tiny
BOB ARGO
  • MEMBER
  • 3 POSTS
I found my copy of the ticket and on it I located
the code. It's PO460

Thanks, Bob Argo
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Thursday, April 4th, 2019 AT 1:59 PM (Merged)
Tiny
BLACKOP555
  • MECHANIC
  • 10,386 POSTS
PO460 means fuel level sensor circuit malfunction.

Means that the fuel tank sending unit is defective or that the wiring harness in the cluster to the unit is bad
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Thursday, April 4th, 2019 AT 1:59 PM (Merged)
Tiny
PCANNEDY
  • MEMBER
  • 1 POST
  • 2002 FORD MUSTANG
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 83,000 MILES
Why does the Check Engine Light come on?
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Thursday, April 4th, 2019 AT 1:59 PM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
HI there,

The check engine light is an indication the one of the engine management sensors has failed or is out of range, the ECU take the information from all the sensors to operate the engine in optimum performance, if a sensor is out of range the ecu will log it as a fault code, this code is unique to each item it is monitoring so the code number is require to identify where your problem may lie.

Mark (mhpautos)
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Thursday, April 4th, 2019 AT 1:59 PM (Merged)
Tiny
THEBOMB263
  • MEMBER
  • 1 POST
  • 2002 FORD MUSTANG
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 69,312 MILES
When idling my 02 mustang sounds great but when you get driving down the road it barely wants to run and the service engine soon light starts blinking their is a smell like raw gas fumes or something under the hood when checked at advance on computer it reads an agr code but if the llight is blinking when it is checked it reads cylinder misfire all new plugs and plug wires are in my car. Please help.
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Thursday, April 4th, 2019 AT 1:59 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Misfiring can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.
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Thursday, April 4th, 2019 AT 1:59 PM (Merged)
Tiny
JENNIE_28
  • MEMBER
  • 2 POSTS
  • 2002 FORD MUSTANG
This morning as I was driving to work my car started to pull really bad like I was stalling and wouldn't go past 3000 rpm and my engine light started blinking. Also heard a knocking sound too. What is the cause of that.
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+1
Thursday, April 4th, 2019 AT 2:00 PM (Merged)
Tiny
FISHERMAN
  • MECHANIC
  • 937 POSTS
Hello Jennie !

Did you continue driving the car?

Check the Fluids as soon as possible !

Water, Coolant on reservoir, Engine Oil, Transmission oil and power steering fluid.
Let us know what is the condition and levels.

We Will be here waiting for your answer.
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Thursday, April 4th, 2019 AT 2:00 PM (Merged)
Tiny
JENNIE_28
  • MEMBER
  • 2 POSTS
I had an engine misfire and did a diagnostic code p0401. I didn't continue driving I was only around the corner from my house so I turned around and got my other car. My husband will replace my spark plugs and my change my exhaust gas circulation.
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Thursday, April 4th, 2019 AT 2:00 PM (Merged)
Tiny
FISHERMAN
  • MECHANIC
  • 937 POSTS
Hello !
Got scared! I thought it was a low oil engine. (Heard a knocking sound).
He Is Right.
P0401 Exhaust Gas Recirculation Flow Insufficient Detected

could be EGR Plugged or malfunction.

Anyhow. Let us know!

Good Luck and thanks a lot for your donation!
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Thursday, April 4th, 2019 AT 2:00 PM (Merged)
Tiny
LILFIZZ1992
  • MEMBER
  • 1 POST
  • 2002 FORD MUSTANG
  • V8
  • 2WD
  • MANUAL
  • 63,000 MILES
My 2002 mustang has the check engine light on. The DTCs it's giving me are: P1000, P0133, P1131. Now the O2 sensors are BRAND NEW, just replaced them. An so is the header gaskets, because I just put a full exhaust on it. But these code were on there before I did this, so I know it wasn't a mechanical mistake. But I can't find out what it is. Can you help?
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Thursday, April 4th, 2019 AT 2:00 PM (Merged)
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Yes I can help. I will look up the codes when I get home and walk you through it if you still need help. So let me know if you haven't fixed it yet.
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Thursday, April 4th, 2019 AT 2:00 PM (Merged)
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
P0133 Intake Air Temp sensor fault
P1000 Diagnostic not completed commonly set when BATT disconnected
P1131 HO2S-11 Rifht side bank O2 just before flange.
Try clearing see what resets
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Thursday, April 4th, 2019 AT 2:00 PM (Merged)
Tiny
ANTHONYPERRYMAN85
  • MEMBER
  • 4 POSTS
  • 2002 FORD MUSTANG
My name is Tony. I have a 2002 Ford Mustang, 142K, V6 3.8L. I just changed the fuel filter the other day. But after a point in time of driving, it starts to bulk down and eventually cuts off. The check engine light is on. My uncle once told me that it might just be the spark plugs. He said it sounds like it's not getting all of the power. I haven't changed them yet. But do you think that is it?
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Thursday, April 4th, 2019 AT 2:00 PM (Merged)
Tiny
BRUCE HUNT
  • MECHANIC
  • 3,754 POSTS
I would be pulling them out not based on the uncle but because I would want to know how they looked. Take a look at them and see if one or more of them looks a bit black. I may be noticeable from viewing the plugs what is going on. Let us know what the condition of the plugs is.
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Thursday, April 4th, 2019 AT 2:00 PM (Merged)
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Have the PCM scanned for the codes
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Thursday, April 4th, 2019 AT 2:00 PM (Merged)

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