CEL's P 0174 and 0175 at same time

csokol83 · Oct 2, 2014

I have a P 0175 and P0174 showing at the same time. What can cause this? I have longtube headers, vararam, 180 Tstat, 87 portedTB and Hemi Fever tuning. I have already tried cleaning the MAF with no success. Note: I have replaced the original o2 sensors with Bosch and I plan on swapping those for NTK when I get in from the North Sea. Any help would be greatly appreaciated!!!

Andrew09HEMI · Oct 2, 2014

I had those same codes after I installed the catch can and had a vacuum leak. Thats most likely your issue, check to see if you have a leak then take it from there. Its the easiest and cheapest thing to tackle

csokol83 · Oct 2, 2014

Thanks for the advice Andrew. Is there a particular point in the hookups where you would suggest to begin looking?

Andrew09HEMI · Oct 2, 2014

Have you installed anything recently where vacuum hoses are present, where you might have nicked it or anything? Id check the most obvious points first, make sure everything is connected and what not.. Some other members may have some better ways but a smoke test will definitely find your leak

csokol83 · Oct 2, 2014

Okay will do. I'll post what I find but it will be a few weeks.

Andrew09HEMI · Oct 2, 2014

Sounds good let me know.. Any videos on your headers and exhaust sound???

csokol83 · Oct 3, 2014

I don't have them with me right now. When I get back stateside I will put them up. Truck sounds mean as he!! and the power gain was pretty noticable.

Andrew09HEMI · Oct 3, 2014

Awesome!!! Return safely, thanks for your service! Look forward to hearing you back safe and hearing tat RAM!!!

CEL's P 0174 and 0175 at same time

csokol83

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Andrew09HEMI

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csokol83

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Andrew09HEMI

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csokol83

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Andrew09HEMI

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csokol83

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Andrew09HEMI

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