MitsuStyle MitsuStyle

Go Back   MitsuStyle > Tech > Tuning/Electrical

 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 05-22-2009   #21
Shane@DBPerformance
formerly ecoli
 
Shane@DBPerformance's Avatar
 

Join Date: Oct 2003
Location: On the dyno
Posts: 4,892
Send a message via AIM to Shane@DBPerformance
Re: Dealing with Phantom knock?

I was just using .90 as an example. .9 could be 12.0, who knows it's different on every car and every sensor and changes with temperature and rpm. They are only accurate at .5volts. I would shoot for .96v or higher at WOT. The 1990s do give lower volts though.

A stock 1G usually runs quite rich with the stock tune. If you have an EPROM ECU, you can run a chip that ignores the knock sensor at lower load to avoid phantom knock. But 90% of the time any knock that happens during boost is real. There are some cars though that have phantom knock all the time, but they usually have noisy built motors.

You could have a bad fuel pump, clogged fuel filter, clogged pickup, bad injector or bad MAF. Is the MAF 100% stock? If it's been hacked at all or the lower honeycomb removed, then that is going to lean the car out quite a bit.
__________________
www.dbptuning.com
Shane@DBPerformance is offline   Reply With Quote
 


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 09:25 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.