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Old 10-25-2022, 01:53 PM
FJ60GatewayDrug FJ60GatewayDrug is offline
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Join Date: Jun 2018
Location: San Diego, CA
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FJ60GatewayDrug FJ60GatewayDrug is offline
Junior Member
 
Join Date: Jun 2018
Location: San Diego, CA
Posts: 12
FJ60GatewayDrug is on a distinguished road
Quote:
Originally Posted by 19963.4lsr5 View Post
Your LTFT is way high. That supercharger at idle shouldn’t effect the airflow that much that it’s at 20. Especially with the big injectors you have over stock.

Extra air bypassing the MAF will cause it.

What is your MAF reading warmed up at an idle of 750rpm?

Just my opinion…..others with superchargers could chime in on their idle LTFT and their injector size and if their ECU is stock, same year and emissions category etc…..
Gotcha, I'm following you. I'm not totally convinced, but I'll configure a page on the UltraGauge to put up STFT, LTFT, Lambda, and MAF reading. After doing some engine work one time I didn't quite tighten one of the hose clamps enough on the intake (about 1/8th to 1/4 turn too loose) and that instantly set a CEL. The ECU can tell, at least in some situations, when unmetered air is getting into the system, but then again I'm going out of spec on fuel so . Thanks for the advice, next time I take a drive I'll report back on what I find.

Maybe I should just buy a kit and replace all the hoses anyway...
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