Ok, precat started crumbling through my exhaust last night on my way home from class. I've had a CEL for about, ohh, a year, but Mazda dealer told me precat failure is pretty common and thats what's setting off the ECU to report some bs error code (error 420, catalyst system warmup under threashold.)
So, the precat is totally screwed. I have an aftermarket header coming down from it that replaces the o2 sensor with a bung filling where it was plugged in. I have a resistor mod in the sensor's socket that pretty much overrides the ECU and makes it think the precat runs good all the time.
Problem is, this has been working all too well for so long, I forgot the precat was burned out and still in there, until it started fluing apart, sounding like marbles running through my exhaust pipe. I'm pretty sure it did damage to my entire exhaust because its not only clogged, but the car runs like **** because it can't emmit fumes. Real bad situation, the car's broken down here at my house and I'm driving my spare car (a 93 Tempo GL) in the mean time, so you see what I'm getting at.
I need a downpipe, something that REPLACES the honey comb bull**** Mazda stuck in there. Who the hell's idea was it to put TWO catalytic convertors in the car anyway. Supposedly these things are warrantied to 80k, unfortunately I'm way over that.
Any thoughts on who can make that 12" bypass pipe to fill in the space of a foot long honey comb precat?
-Tim
So, the precat is totally screwed. I have an aftermarket header coming down from it that replaces the o2 sensor with a bung filling where it was plugged in. I have a resistor mod in the sensor's socket that pretty much overrides the ECU and makes it think the precat runs good all the time.
Problem is, this has been working all too well for so long, I forgot the precat was burned out and still in there, until it started fluing apart, sounding like marbles running through my exhaust pipe. I'm pretty sure it did damage to my entire exhaust because its not only clogged, but the car runs like **** because it can't emmit fumes. Real bad situation, the car's broken down here at my house and I'm driving my spare car (a 93 Tempo GL) in the mean time, so you see what I'm getting at.
I need a downpipe, something that REPLACES the honey comb bull**** Mazda stuck in there. Who the hell's idea was it to put TWO catalytic convertors in the car anyway. Supposedly these things are warrantied to 80k, unfortunately I'm way over that.
Any thoughts on who can make that 12" bypass pipe to fill in the space of a foot long honey comb precat?
-Tim
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