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Old 10-26-2012, 08:25 AM   #1
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Sn95 missfire bogging

My 95 mustang gt 5.0 has been bogging for awhile. I always just thought it was a spark or fuel problem. Replaced the fuel pump, sending unit, oring, fuel filter, msd wires, new plugs etc. then was still doing the same problem. Ive heard of lots of these cars with the same problems and i brought it into the ford dealership and was told it jeeds a new ecu.

---------- Post added at 07:25 AM ---------- Previous post was at 07:25 AM ----------

It needs* but does anyone else know if this is true of why it will be bogging out?
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Old 10-26-2012, 08:27 AM   #2
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Quote:
Originally Posted by Battista
My 95 mustang gt 5.0 has been bogging for awhile. I always just thought it was a spark or fuel problem. Replaced the fuel pump, sending unit, oring, fuel filter, msd wires, new plugs etc. then was still doing the same problem. Ive heard of lots of these cars with the same problems and i brought it into the ford dealership and was told it jeeds a new ecu.
Timing can cause an issue like this too.. We do have suspect ECU's but generally they don't act up unless you have heavy mods.. Generally..
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Old 10-26-2012, 08:35 AM   #3
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Quote:
Originally Posted by Battista
My 95 mustang gt 5.0 has been bogging for awhile. I always just thought it was a spark or fuel problem. Replaced the fuel pump, sending unit, oring, fuel filter, msd wires, new plugs etc. then was still doing the same problem. Ive heard of lots of these cars with the same problems and i brought it into the ford dealership and was told it jeeds a new ecu.

---------- Post added at 07:25 AM ---------- Previous post was at 07:25 AM ----------

It needs* but does anyone else know if this is true of why it will be bogging out?
Under what conditions is it bogging or miss firing? Is it popping or back firing? What mods do you have?
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Old 10-26-2012, 01:15 PM   #4
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Intake, thottle body, cam, exhaust, 410 gears, eldelbrock 255 fuel pump, etc. its always bogging and once in awhile will back fire. Not to often though
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Old 10-26-2012, 02:09 PM   #5
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Originally Posted by Battista
Intake, thottle body, cam, exhaust, 410 gears, eldelbrock 255 fuel pump, etc. its always bogging and once in awhile will back fire. Not to often though
Sounds like you need a good dyno tune to me.
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Old 10-26-2012, 02:28 PM   #6
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Quote:
Originally Posted by deadsp0t

Timing can cause an issue like this too.. We do have suspect ECU's but generally they don't act up unless you have heavy mods.. Generally..
+1, sounds like a timing issue. When my ECM was going out it would flood out trying to crank it.
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Old 10-26-2012, 03:08 PM   #7
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Quote:
Originally Posted by Battista View Post
My 95 mustang gt 5.0 has been bogging for awhile. I always just thought it was a spark or fuel problem. Replaced the fuel pump, sending unit, oring, fuel filter, msd wires, new plugs etc. then was still doing the same problem. Ive heard of lots of these cars with the same problems and i brought it into the ford dealership and was told it jeeds a new ecu.

---------- Post added at 07:25 AM ---------- Previous post was at 07:25 AM ----------

It needs* but does anyone else know if this is true of why it will be bogging out?
IF they tested it to determine that, they may be right. Because the ECU controls everything, timing, fuel injector pulse width, etc., etc..
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Old 10-27-2012, 10:17 PM   #8
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I had the same issue a couple months ago and it ended up being a timing issue. I would check that first
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