Exhaust Back Pressure Code

[TommyBoy#1]

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???


Thanks

[TommyBoy#1]

can anyone help or atleast BS and make it sould believable

[stillstrokinit]

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.

[TommyBoy#1]

didnt see anything but i didnt look that close thanks gives me a place to look next

[stillstrokinit]

keep me posted on what you find

[TommyBoy#1]

thanks will do

[nccatfan]

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.

[stillstrokinit]

[stillstrokinit]

if its just plugged try an aircompressor to blow it out.

[TommyBoy#1]

well thats nice to know i thought i was goin to have to buy a 5 in exhaust