Exhaust Back Pressure Code - Ford Powerstroke Diesel Forum
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post #1 of 13 Old 05-26-2009, 08:07 PM Thread Starter
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Exhaust Back Pressure Code

just like the title says i have a back pressure code i have a php 140 hp perf chip and a 4 in straight pipe as it says in my signiture what should i do theres no way im getting that much pressure is there???


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post #2 of 13 Old 05-26-2009, 08:21 PM Thread Starter
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can anyone help or atleast BS and make it sould believable
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post #3 of 13 Old 05-26-2009, 08:27 PM
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check the tube that goes from the front of the exhaust manifold on the passenger side up to a sensor on the top of the engine in the front. if it is rusted through or something it will throw a code.

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post #4 of 13 Old 05-26-2009, 08:30 PM Thread Starter
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didnt see anything but i didnt look that close thanks gives me a place to look next
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post #5 of 13 Old 05-26-2009, 08:31 PM
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keep me posted on what you find

1996 F350 4x4 Crew Cab long box. powerstroke e4od
168000 miles
33x12.5x16.5 BFG MT
K&N intake
Edge evolution
Home made exhaust
add a leaf up front

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post #6 of 13 Old 05-26-2009, 08:35 PM Thread Starter
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thanks will do
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post #7 of 13 Old 05-26-2009, 08:39 PM
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Front of the pass. side exh manifold has a fitting where that tube connects. That tube dead-ends at the sensor. Could be plugged or corroded thru. Just had to replace mine... $50 for a new tube from the dealer parts counter.


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post #8 of 13 Old 05-26-2009, 08:42 PM
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1996 F350 4x4 Crew Cab long box. powerstroke e4od
168000 miles
33x12.5x16.5 BFG MT
K&N intake
Edge evolution
Home made exhaust
add a leaf up front

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post #9 of 13 Old 05-26-2009, 08:43 PM
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if its just plugged try an aircompressor to blow it out.

1996 F350 4x4 Crew Cab long box. powerstroke e4od
168000 miles
33x12.5x16.5 BFG MT
K&N intake
Edge evolution
Home made exhaust
add a leaf up front

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post #10 of 13 Old 05-26-2009, 08:43 PM Thread Starter
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well thats nice to know i thought i was goin to have to buy a 5 in exhaust
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