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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-

92 Mustang Popping Hesitation

  • Thread starter Thread starter Rocky Rodriquez
  • Start date Start date Jan 21, 2017
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    popping hesitation
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Rocky Rodriquez

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Jan 21, 2017
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#41
  • Feb 1, 2017
  • #41
Rocky Rodriquez said:
A9l manual trans
Click to expand...
And u have to have the clutch pushed in to start
 

Rocky Rodriquez

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Jan 21, 2017
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#42
  • Feb 1, 2017
  • #42
Rocky Rodriquez said:
A9l manual trans
Click to expand...
And u have to have the clutch pushed in to start
 

a91what

SendMeUrDataLog
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#43
  • Feb 1, 2017
  • #43
I didn't see a parts list....

What injectors do you have? Color?

What MAF?
 

Rocky Rodriquez

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#44
  • Feb 1, 2017
  • #44
a91what said:
I didn't see a parts list....

What injectors do you have? Color?

What MAF?
Click to expand...
24 pound and mass air is calibrated to match aluminum heads trick flow and take
 

Rocky Rodriquez

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#45
  • Feb 1, 2017
  • #45
Rocky Rodriquez said:
24 pound and mass air is calibrated to match aluminum heads trick flow and take
Click to expand...
It also did the same thing with the old motor
 

a91what

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#46
  • Feb 1, 2017
  • #46
I get that it did the same thing. There has to be a correlation between the two.

Dumb question but have you checked that the fuel lines are not crossed?
 

Rocky Rodriquez

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#47
  • Feb 1, 2017
  • #47
a91what said:
I get that it did the same thing. There has to be a correlation between the two.

Dumb question but have you checked that the fuel lines are not crossed?
Click to expand...
Ya made sure everything was there what's weird is it will run good than bad than hood than bad but going to change the filter and see if it helps it looks brand new I think I changed it thinking it was the problem
 

General karthief

wonder how much it would cost to ship you a pair
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Feb 1, 2017
#48
  • Feb 1, 2017
  • #48
Ok, this is going to take some testing. Need to find out what changes when it starts running bad, first we need to make sure the fuel pressure stays constant, thats going to require a fuel pressure gauge that can be read on the fly. Also need to check voltage on the fly, and not with the stock gauge.
Before we do that you need to make sure all your grounds are good, battery to block, block to firewall, and the ground from the battery to the fender apron next to the battery, that one has two wires on it. I will look at my magic book because I keep thinking there is a ground by the computer in the kick panel.
 

Rocky Rodriquez

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#49
  • Feb 1, 2017
  • #49
karthief said:
Ok, this is going to take some testing. Need to find out what changes when it starts running bad, first we need to make sure the fuel pressure stays constant, thats going to require a fuel pressure gauge that can be read on the fly. Also need to check voltage on the fly, and not with the stock gauge.
Before we do that you need to make sure all your grounds are good, battery to block, block to firewall, and the ground from the battery to the fender apron next to the battery, that one has two wires on it. I will look at my magic book because I keep thinking there is a ground by the computer in the kick panel.
Click to expand...
Ok I'll check all grounds when I get home thank u guys for help
 

Rocky Rodriquez

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Feb 1, 2017
#50
  • Feb 1, 2017
  • #50
Rocky Rodriquez said:
Ok I'll check all grounds when I get home thank u guys for help
Click to expand...
Now I think about it I don't remember seeing a ground from batt to block I could be wrong
 

Rocky Rodriquez

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#51
  • Feb 1, 2017
  • #51
The
Rocky Rodriquez said:
Now I think about it I don't remember seeing a ground from batt to block I could be wrong
Click to expand...
 

Black1987

my wife Bedazzled my input shaft
15 Year Member
Jan 9, 2011
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Feb 1, 2017
#52
  • Feb 1, 2017
  • #52
karthief said:
Ok, this is going to take some testing. Need to find out what changes when it starts running bad, first we need to make sure the fuel pressure stays constant, thats going to require a fuel pressure gauge that can be read on the fly. Also need to check voltage on the fly, and not with the stock gauge.
Before we do that you need to make sure all your grounds are good, battery to block, block to firewall, and the ground from the battery to the fender apron next to the battery, that one has two wires on it. I will look at my magic book because I keep thinking there is a ground by the computer in the kick panel.
Click to expand...

There is a ground by the computer. I don't think you could of burnt the trace on your computer, but do you have a buddy with a spare computer to try?

You can also inspect the trace in yours to cut that out as well

If you had problems with it before and the computer being a constant....maybe but inspect to rule out.

Also grab a pic of your mass air sensor and the part number. Have you unplugged the mass air sensor to see if it runs any different?
 

Rocky Rodriquez

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Jan 21, 2017
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Feb 1, 2017
#53
  • Feb 1, 2017
  • #53
Black1987 said:
There is a ground by the computer. I don't think you could of burnt the trace on your computer, but do you have a buddy with a spare computer to try?

You can also inspect the trace in yours to cut that out as well

If you had problems with it before and the computer being a constant....maybe but inspect to rule out.

Also grab a pic of your mass air sensor and the part number. Have you unplugged the mass air sensor to see if it runs any different?
Click to expand...
No haven't tried the mass air but yes tried 3 computers does the same thing
 

General karthief

wonder how much it would cost to ship you a pair
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Feb 1, 2017
#54
  • Feb 1, 2017
  • #54
Ground from battery to a bolt by the oil pressure sending unit on block
 

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
27,942
10,582
203
polk county florida
Feb 1, 2017
#55
  • Feb 1, 2017
  • #55
Can't really tell but it appears your ground wire is kinda puney, is this the current condition of the engine or old picks of when you were putting it together?
 

Rocky Rodriquez

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Jan 21, 2017
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Feb 1, 2017
#56
  • Feb 1, 2017
  • #56
karthief said:
Can't really tell but it appears your ground wire is kinda puney, is this the current condition of the engine or old picks of when you were putting it together?
Click to expand...
I'll get a better that's when the new motor is in
 

Rocky Rodriquez

Member
Jan 21, 2017
51
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Feb 1, 2017
#57
  • Feb 1, 2017
  • #57
karthief said:
Ok, this is going to take some testing. Need to find out what changes when it starts running bad, first we need to make sure the fuel pressure stays constant, thats going to require a fuel pressure gauge that can be read on the fly. Also need to check voltage on the fly, and not with the stock gauge.
Before we do that you need to make sure all your grounds are good, battery to block, block to firewall, and the ground from the battery to the fender apron next to the battery, that one has two wires on it. I will look at my magic book because I keep thinking there is a ground by the computer in the kick panel.
Click to expand...
Ya grounds r there it was just a bad pic it's the same size as the power
 

Rocky Rodriquez

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Jan 21, 2017
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Feb 4, 2017
#58
  • Feb 4, 2017
  • #58
Anybody running one of these thinking of switching from multi port main reason because it tunes it self. And I can use my factory tank and 255 pump
 

a91what

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Feb 4, 2017
#59
  • Feb 4, 2017
  • #59
What are you currently using? What issues are you having?

Btw NOTHING tunes itself. It just won't happen, they can "trim" themselves but still run like poo....
 

Rocky Rodriquez

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Jan 21, 2017
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Feb 4, 2017
#60
  • Feb 4, 2017
  • #60
I have a post on here about popping out the intake everything new wiring sensors whole fuel system, whole new motor from mass air to oil pan still same thing so wa gonna buy one of these well u have mess with the timing and other little things
 
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