Jump to content
The mkiv Supra Owners Club

Doh! Why my EGBV isn't working...


SimonB

Recommended Posts

I've been suffering from the dreaded late 2nd turbo syndrome, where the EGBV doesn't open. Just spent ages checking all the hoses, testing the VSV, blowing down hoses and checking everything. Nothing wrong. Then I realised what I'd done.

 

I recently fiddled with my Emanage map. I run higher than stock fuel pressure, with fueling trimmed down where not needed. On the Emanage this is done by scaling the MAP signal down in a table with RPM on one axis and throttle position on the other. That's a base if you like, to which you add fuel in an injector table which has RPM on one axis and boost on the other.

 

Unfortunately I scaled down the MAP signal so much that the ECU is deciding it doesn't need to open the EGBV. Doh! Time to rejig my map I think. Anyway, thought I'd share that duh! moment in case anyone else tries something similar!

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. You might also be interested in our Guidelines, Privacy Policy and Terms of Use.