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Late 24v catalyst

Posted: Wed Feb 21, 2024 8:34 pm
by mr moo
Greetings all, MOT scrape through yet again on emissions and the CO wouldn't go below .06. The tester said the ECU is doing its job but the catalytic converter should get it down to below .03.

I'm needing a new cat, 1997 late 24v, can someone remind me of the size and possibly where to source one? I'm sure one of the Mazda family share the same cat ❓

The car has always smelt rich, yet other than injectors, plugs, leads and dizzy cap being in good condition, what else can you do to weaken off the mixture?
TIA

Neil

Re: Late 24v catalyst

Posted: Thu Feb 22, 2024 9:46 am
by Kit
440mm long, with both flanges the same size.

Old good OME, can be better than a cheap aftermarket one.

Kit

Re: Late 24v catalyst

Posted: Thu Feb 22, 2024 9:48 am
by Kit
Try pulling the trouble codes, the O2 sensor may have gone "bad".

Kit

Re: Late 24v catalyst

Posted: Thu Feb 22, 2024 6:50 pm
by andy p
I have a pair of O2 sensors from 97 24v, PM if interested.

Re: Late 24v catalyst

Posted: Thu Feb 22, 2024 8:17 pm
by mr moo
Thanks kit and andy, I was thinking of buying a new one and maybe de-catting and refitting it for MOT time. I have a pair of new 02 sensors here thanks andy