[Mk2] [Turbo] Boost but no power and fault 21

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killerferret666
Posts: 659
Joined: Thu Jul 26, 2012 8:00 am

[Mk2] [Turbo] Boost but no power and fault 21

Post by killerferret666 »

so ill summarise so its quick to read. Car makes boost (shown on boost controller) to 1.2 bar but absolutely no power from it, no urgency. Car smells a bit rich. Originally this issue was intermittent but now all the time.

Code 21 - lambda sensor shows. Bought a denso DOX-0101 to replace it like others on here, even though the universal one was a year old.

Checked wiring back to ECU for the 4 pin lambda sesnor and all good. Had the ECU in my hand, completely disconnected and still holds this error! Plugged back in, never started car before, turned ignition with bridged diagnostics port and still showed up.

So im left with why wont the error go?

The only thing I can think of is the ECU as i had the capacitors replaced on it last year and maybe that's caused the damage.

any thoughts???


And anyone with a rev3+ ECU i could borrow and test with or potentially for sale of course!
My Blog on Miami GT4 kit car build using MR2 Donor Car

http://miamigt4kitcar.blogspot.co.uk/

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