header/exhaust
first of all, thanx for the replie Rich. on a scale from 1-10 i'd say a 5. its not too loud.
anyway, right now im running without any cats, wich brings up the following questions: 1- it took three weeks for the check engine light to come on, why?? 2- the 4-1 headers that SR sells have longer pipes before all joining, compared to mine which are relativly short, is it possible that i am empting out(back pressure)??? thanx guys |
The ecu goes through certain short term and long term tests, so your light doesn't necessarily come on immediately after a change is made.
With a header, pipe, and exhaust... you will be losing some back pressure. However, the low end losses are probably not bad considering the mid and high gains you should be experiencing. [ September 07, 2002, 03:29 PM: Message edited by: Josh ] |
thanx for the info man.
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my CEL came on went off on it's own and came back on a couple days later. about how long will it take to go out again?
current mods: sr 4-2-1 headers, 59-61mm bbtb, cat-back |
sometimes, cel comes on when your Oxygewn sensor is going bad. Maybe your running lean also.
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