Quote:
Originally Posted by DrFerry
Quote:
Originally Posted by Black.m3
I have a rough idle at cold ONLY, there is no more issue when i drive the car & when i start again also, it does at cold uniquely. No loss of power or performance, the OEM exhaust is re installed and those codes which are hard to solve appears always.
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Quote:
Originally Posted by Redd
Many people have replaced the AGM batt with normal lead-acid with no issues. It should not be the cause for your problems. Forgetting to code a new batt also will not cause misfires. Removing your cats without a tune will cause emissions CEL but should not cause misfires. Again, remove your plenum and drive it and see if the misfires still occur.
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Perhaps I misunderstood. I thought he wasn't actually getting any misfires. He mentioned he has no loss of power or performance but merely getting the codes thrown. Hence, I thought it might be a low voltage battery issue. Forgetting to code a new battery may cause the battery not to be charged properly and low battery voltage can cause all sorts of gremlins. Agreed a tune is needed to remove the CEL if or when the Cats are removed. Good idea to run it and drive it without the plenum and see if the codes go away. |
My issue is only at cold, rough idle for 10-15 secs + misfires impairing exhaust emission on several cylinders (on all)
I never made a tune with the IPE F1, and i installed the front pipe with sport cats + x pipe which according to IPE it should not trigger the CEL, and doesn't need a tune only if you go cat-bypass (catless)
And i putted back oem exhaust with always the same issue.
So to go step by step, for IPE my issue isn't related to the installation of the exhaust and for them it's a fuel or engine verification..
But what it's strange is that i had these fault codes after 2 months from the moment i installed the exhaust.
I never had these codes before to install the exhaust system, but if I'm not mistaken I noticed a slight irregular idle sometimes at cold start without codes or CEL before the installation of the IPE.