Exhaust Issue

[TedMicer]

ohk i been having a code P1456 I fixed my flex pipe and it went away but one month later the leak cam back i found out it has a crack on Cylinder 1 on the pipe.... I kno i have to replace the manifold but i was wondering can i buy After market Headers and have it bolt up to my Oem Intermedate pipe or do i have to buy a manifold??

 

[xci.ed6]

The header depends on the style.

4-1, cylinder head, to exhaust, no mid pipe

(most) 4-2-1, they have a mid pipe.

But no, you can't fit them together usually.

Just have it welded, just find a back-door shop & ask them.

 

[james'99]

P1456 is in regards to an EVAP system issue. Are you sure you are diagnosing correctly?

 

[TedMicer]

typo i ment p1457 p1164

 

[james'99]

Okay, so P1164 first. No matter the issue with your header, I think the sensor is toast. Are you F23A1 or A4 (non-ULEV or ULEV)? They are different sensors for each.

I think most header setups are 4-2-1 for this car so I think you'll need a complimenting downpipe.

P1457... EVAP Canister I think....

 

[TedMicer]

i have a ULEV now im starting to get an exhaust smoke but only when vtec engages
my oil is fine my antifreeze is fine its been riding funny

 

[bairdandrew77]

What color is the smoke? What does it smell like?

 

[james'99]

Are you sure it isn't on the low end as well? This theoretically should have no tie in's with VTEC. It is probably just less pronounced on the low end.

 

[TedMicer]

The smoke is like blueish but my oil and antifreeze is good so it aint my head gasket smells like carbon build up i see smoke after 6k rpm

 

[james'99]

It is quite possible that it's carbon build up. You should try a seafoam treatment through the brake booster vacuum line. If you have a manual transmission, you may throw a P0500 code during the process. The first time I seafoamed mine, the engine died quite a few times. After that, it ran much better and I can no longer get it to die by drowning it in seafoam.

Do you know how to do this treatment properly?