Unhooked the MAF and car runs better than New. whats up with this
10-13-2006, 08:24 PM
#1
Thread Starter
Join Date: Oct 2006
Location:
Posts: 14
Unhooked the MAF and car runs better than New. whats up with this
Car is running like crap wiht it hook up, a friend told me to unhook the MAF. The car runs like a CHAMP. Hook it back up runs like ****. How do replace this.
10-13-2006, 08:27 PM
#2
Gentleman's Relish
Join Date: Feb 2005
Location: AZ
Posts: 13,090
RE: Unhooked the MAF and car runs better than New. whats up with this
I've 'heard' that the 5.0 MAF combo can be very tempermental. Try clocking the MAF to see if that helps. By Clocking I mean rotate the housing to see if a certain position works better than others. The flow is critical.
Also, make sure you don't have any leaks around the MAF housing or the TB.
Also, make sure you don't have any leaks around the MAF housing or the TB.
10-13-2006, 08:38 PM
#4
4th Gear Member
Join Date: Feb 2006
Location: Seattle, WA
Posts: 1,375
RE: Unhooked the MAF and car runs better than New. whats up with this
When you disconnect the MAF or O2's in our cars the computer adopts default values to replace the input from that sensor.
Thus,
unplugging a sensor is a bad way to confirm that a sensor is bad.
You need to pull your computer codes, to see why the engine is not running properly.
Since you are pretty new here, Welcome to the Forum.
Now is a good time to create a signature listing your major mods, and other relevant info on your car.
With a sig we won't have to ask what mods you have made every time you ask a question.
What MAF/MAS are you running?
Injectors?
Condition of O2's?
Any of these things could mess things up for you.
But, before you go out and buy any parts, check your codes.
I have a link in my sig if you don't have a scanner.
Let us know what codes you get and we will work from there.
jason
Thus,
unplugging a sensor is a bad way to confirm that a sensor is bad.
You need to pull your computer codes, to see why the engine is not running properly.
Since you are pretty new here, Welcome to the Forum.
Now is a good time to create a signature listing your major mods, and other relevant info on your car.
With a sig we won't have to ask what mods you have made every time you ask a question.
What MAF/MAS are you running?
Injectors?
Condition of O2's?
Any of these things could mess things up for you.
But, before you go out and buy any parts, check your codes.
I have a link in my sig if you don't have a scanner.
Let us know what codes you get and we will work from there.
jason
10-13-2006, 08:42 PM
#5
Thread Starter
Join Date: Oct 2006
Location:
Posts: 14
RE: Unhooked the MAF and car runs better than New. whats up with this
The car is stock. But there are no check engine lights that came on, and i dont have a Analog volt meter to get codes. .The car barly runs with it hooked up, can i run to the parts store with this disconnected? I do have flowmaters and only have the top two Cats on it.
10-13-2006, 08:52 PM
#7
4th Gear Member
Join Date: Feb 2006
Location: Seattle, WA
Posts: 1,375
RE: Unhooked the MAF and car runs better than New. whats up with this
You probably could drive it to the store, but I cannot guarantee you will make it.
If you do decide to drive it, baby it.
DO NOT GO TO WOT
Autozone can probably pull the codes for you, but some locations will only pull OBD-II codes.
There may be other parts stores that will pull codes as well?
What year is this Mustang?
When did the problem start?
jason
If you do decide to drive it, baby it.
DO NOT GO TO WOT
Autozone can probably pull the codes for you, but some locations will only pull OBD-II codes.
There may be other parts stores that will pull codes as well?
What year is this Mustang?
When did the problem start?
jason
10-13-2006, 09:01 PM
#8
Thread Starter
Join Date: Oct 2006
Location:
Posts: 14
RE: Unhooked the MAF and car runs better than New. whats up with this
1993 the problem started after the Alternator went out last week. But before teh alternator went out, It would cut out at full throttle. and what does WOT mean?
10-13-2006, 09:06 PM
#9
4th Gear Member
Join Date: Feb 2006
Location: Seattle, WA
Posts: 1,375
RE: Unhooked the MAF and car runs better than New. whats up with this
WOT = Wide Open Throttle
There are a couple of things that can cause the car to cut out at wot, and I think they will all show up in the codes.
The cel doesn't come on for all trouble codes.
Ford should have had the CEL illuminate when any problem came up, but decided that too many owners would be taking their cars back to the dealer too often if this were the case.
jason
There are a couple of things that can cause the car to cut out at wot, and I think they will all show up in the codes.
The cel doesn't come on for all trouble codes.
Ford should have had the CEL illuminate when any problem came up, but decided that too many owners would be taking their cars back to the dealer too often if this were the case.
jason
10-13-2006, 09:06 PM
#10
6th Gear Member
Join Date: Jul 2006
Location: San Diego, CA
Posts: 6,882
RE: Unhooked the MAF and car runs better than New. whats up with this
ORIGINAL: capumtim
1993 the problem started after the Alternator went out last week. But before teh alternator went out, It would cut out at full throttle. and what does WOT mean?
1993 the problem started after the Alternator went out last week. But before teh alternator went out, It would cut out at full throttle. and what does WOT mean?
lol
