MX-5 NC with RX-8 231 Engine

Paul_13 · December 02, 2018, 03:04:02 PM

Install rx8 abs rings and use neighbours snap on scanner. Should be it

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boosted · December 02, 2018, 03:07:12 PM

Coolfingers x

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Paul_13 · December 02, 2018, 06:34:26 PM

Getting an expert at this. Took 25 mins to get to that point. Need to get to the bottom of the p0032 fault code as well

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boosted · December 02, 2018, 07:13:29 PM

Front 02 heater circuit...the 2 same colour wires...its a heater to warm up the sensor to get it up to temp quicker and from open to closed loop control as quicker as poss.
Need to ohm test, if its open circuit then replace. Or turn it off with mazda edit.

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Paul_13 · December 02, 2018, 07:18:15 PM

Bought a new lambda as well, should of done that to begin with!

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boosted · December 02, 2018, 07:26:08 PM

Direct wired to ecu via the engine loom...so doubt a connection...wont have a running effect....exhaust off a rotary is alway hot lol.

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Paul_13 · December 02, 2018, 07:44:13 PM

Quote from: boosted on December 02, 2018, 07:26:08 PM
Direct wired to ecu via the engine loom...so doubt a connection...wont have a running effect....exhaust off a rotary is alway hot lol.

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The o2 was an reportably a working item, but probably an error. No offence to the seller BTW who is on here, it was free!

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Paul_13 · December 02, 2018, 07:50:54 PM

@boosted did you leave your rear o2 sensor unplugged? Any problems?

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Paul_13 · December 02, 2018, 08:02:47 PM

Also does any one have a rx8 drive shaft they can measure? Need the I. D. of the abs ring. Just want to double check before I take off the mx5 items

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boosted · December 02, 2018, 08:05:37 PM

Cut mine out of loom no issues. Mines been mapped out light turned off although i havent got a engine check light lol ..all a post rear o2 sensor does is monitor the cat and check its working...
The front 02 sensor is the key 1 it runs the car when in part throttle cruise etc. Wot its not used uses the fuel map in the pcm..read summit in the states about disconnecting and running fuel map all the time but not brave enough to try my car gets used on road too so what it smooth in cruising and part throttle pulls. Cant really use wot on public roads will end in my tears...

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Paul_13 · December 02, 2018, 09:38:32 PM

Good to know.
Must be dodgy o2 sensor, just traced all wires and all good.

Also just traced all of the dsc yaw sensor wires and they all match up. Yay

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Paul_13 · December 03, 2018, 04:58:09 PM

ABS rings are here. Fit them later

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boosted · December 03, 2018, 05:00:03 PM

Fingers x do the job.

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Paul_13 · December 03, 2018, 07:46:21 PM

Well that come off easier than expected

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boosted · December 03, 2018, 07:55:03 PM

Blowtorch? Interference fit?

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