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The mkiv Supra Owners Club

I need to adjust my SSQV!


veilsideTT

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Hi all.

 

After my engine rebuild I have had a few issues regarding stalling.

Before I used to stall now and again due to being Auto and having a Vent to Atmosphere BOV on the car.

Since the rebuild I’ve gone Full De Cat now and had a 3row.

 

But! my car stalls quite easily now when braking hard after boosting slightly (Still running in) i only have to touch the throttle (creating slight boost at low revs) and then let off and the BOV is venting straight the way.

 

I feel that the spring is too loose and is opening up on the slightest amount of boost when I let off the throttle, probably due to the turbo’s spooling up a little quicker now as I’ve taken the first cat out.

 

So to my point. I have read on many occasions to

"NEVER TOUCH THE BOLT ON THE BACK OF THE SSQV"

 

But I cant help but feel the spring is opening up too easily and she needs tightening up slightly!

 

Sorry that was a bit long winded

Hope someone can help

 

Cheers

Scott

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Did you have a UK of J-spec Auto matt?

 

As issues of Stalling with Vent to Atmosphere BOV's only occured on UK spec Autos. Something to do with the Mass Air Flow sensor on the UK spec (the j-spec has a MAP sensor instead which doesnt cause any problems)

 

I think i got the MAP,MAF thing the right way round :confused:

 

Scott

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i have had that sort of problem before, went up to eyefis and we put car in ttc mode was testing it out and braking hard to a junction and it cut engine out, only done a couple of times which is weird. i have a jap spec auto tt with blitz bov. since took the bov off as it was leaking. it made a whistle sound over 2000 revs

got sock bov on

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Originally posted by veilsideTT

Did you have a UK of J-spec Auto matt?

 

As issues of Stalling with Vent to Atmosphere BOV's only occured on UK spec Autos. Something to do with the Mass Air Flow sensor on the UK spec (the j-spec has a MAP sensor instead which doesnt cause any problems)

 

I think i got the MAP,MAF thing the right way round :confused:

 

Scott

 

OK, ignore my comments then... Mine are both JDM cars.

 

And yes, you do have the MAP/MAF the right way around :thumbs:

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