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[Mk2] [Turbo] UK car with revision 3 full conversion. Engine management light coming on?

 
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BALDYMONSTER




Joined: 29 Aug 2014
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PostPosted: Thu Jul 25, 2019 7:07 pm    Post subject: [Mk2] [Turbo] UK car with revision 3 full conversion. Engine management light coming on? Reply with quote Reply with quote including images

Engine management light comes on, I get indicated full boost on both my displays but feels like half the power.

Switch off ignition and all good then a few minutes later engine management light on and same thing, feels like half power but indicating I’m getting the boost I’ve selected.

Car isles fine, no sudden stuttering or cutting out or similar. Just engine management light comes on and put my foot down blitz dial solenoid boost controller and omori dash boost gauge indicate the boost I’ve set it to but feels like I’m back in a non turbo MR2.

Any ideas off the top of people’s heads?
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SonicSW20
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1997 Toyota MR2 Mk2 NA Rev4

PostPosted: Thu Jul 25, 2019 7:53 pm    Post subject: Reply with quote Reply with quote including images

Have you checked the error codes?
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mrhappy62




Joined: 20 May 2015
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PostPosted: Thu Jul 25, 2019 7:59 pm    Post subject: Reply with quote Reply with quote including images

[d'oh!] just told him paper clip test on the OC
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BALDYMONSTER




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PostPosted: Thu Jul 25, 2019 7:59 pm    Post subject: Reply with quote Reply with quote including images

No as I don’t know how to.

It’s going back to the garage tomorrow to get the reader put on it.
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SonicSW20
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1997 Toyota MR2 Mk2 NA Rev4

PostPosted: Thu Jul 25, 2019 8:03 pm    Post subject: Reply with quote Reply with quote including images

https://www.mr2oc.co.uk/know-your-2/mk2.html?view=kb&kbartid=162

Only takes a minute.
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BALDYMONSTER




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PostPosted: Thu Jul 25, 2019 8:05 pm    Post subject: Reply with quote Reply with quote including images

Thank you.
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BALDYMONSTER




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PostPosted: Tue Jul 30, 2019 4:17 pm    Post subject: Reply with quote Reply with quote including images

Fault code 52.
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SonicSW20
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1997 Toyota MR2 Mk2 NA Rev4

PostPosted: Tue Jul 30, 2019 4:39 pm    Post subject: Reply with quote Reply with quote including images

No knock sensor signal and the ECU is in safe mode.

Problem could be knock sensor itself or a wiring issue.

If it is the knock sensor then you need to ascertain why the knock sensor failed.
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BALDYMONSTER




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PostPosted: Tue Jul 30, 2019 4:41 pm    Post subject: Reply with quote Reply with quote including images

Are the knock sensors the same on both turbo and non turbo blocks?

It wouldn’t surprise me if it’s just bad wiring for obvious reasons.

I’ll get it checked out with the MOT.
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Ryan S
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1994 Toyota MR2 Mk2 Turbo Rev3

PostPosted: Tue Jul 30, 2019 6:47 pm    Post subject: Reply with quote Reply with quote including images

SonicSW20 wrote:
No knock sensor signal and the ECU is in safe mode.

Problem could be knock sensor itself or a wiring issue.

If it is the knock sensor then you need to ascertain why the knock sensor failed.


They often fail when they detect knock. Too much boost and or cheap fuel.
_________________


www.straitupstudios.co.uk
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BALDYMONSTER




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PostPosted: Tue Jul 30, 2019 8:57 pm    Post subject: Reply with quote Reply with quote including images

It’s most likely the cheap fuel I put in it and the tank being really low.

Like I said I always use V Power.

I don’t run much boost either.
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androo007




Joined: 03 Mar 2014
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1994 Toyota MR2 Mk2 Turbo Rev3

PostPosted: Wed Jul 31, 2019 7:33 pm    Post subject: Reply with quote Reply with quote including images

Next stop: ringland failure.
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BALDYMONSTER




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PostPosted: Mon Aug 26, 2019 11:18 am    Post subject: Reply with quote Reply with quote including images

Are the knock sensors the same on turbo and non turbo?

Sensor and wiring all seems ok so next stop new sensor.
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