Cold Catalytic Converter?
Thread Starter
Drifting
Joined: Nov 2015
Posts: 1,716
Likes: 332
Finalist 2020 C4 of the Year - Unmodified
Cold Catalytic Converter?
I'm aware one of the items that can diagnose a cat is its temperature at the inlet versus the outlet. The outlet should be hotter due to the chemical reaction. If the outlet is cooler, this indicates no reaction and the cat is bad.
Or is it? What else might cause a cat to go cold, from the engine? Too lean? Coolant leak?
Or is it? What else might cause a cat to go cold, from the engine? Too lean? Coolant leak?
Safety Car
Joined: Apr 2016
Posts: 4,648
Likes: 1,059
From: N.E. Ohio OH
Finalist 2020 C4 of the Year - Modified
https://www.walkerexhaust.com/suppor...c-testing.html
note that in the article it says newer vehicles with a good tune can experience only a 20 deg difference and that there are other variables that can affect temp differences
is there anywhere around you that can perform a sniff test for free ? your profile doesn't say where you are at
note that in the article it says newer vehicles with a good tune can experience only a 20 deg difference and that there are other variables that can affect temp differences
is there anywhere around you that can perform a sniff test for free ? your profile doesn't say where you are at
Last edited by drcook; Oct 17, 2020 at 05:26 AM.
