new injectors quick question... - Page 2

2genfun · 04-01-2010, 12:39 AM

yep regardless of throttle position...it'll flutter past 4k but its a struggle

cre · 04-01-2010, 01:32 AM

Well, if it's lambda equipped (UDSM, CDM, JDM and most of the rest of the world market) then the ECU will pull enough fuel for close to normal operation in all cases except for throttle positions above 70%... or have you pulled the O2 (Lambda) sensor? What other mods are you running and have you actually tested the AFM (new, doesn't mean it's not broken, is it actually new)?

Other possibilities are excessive knock, a restriction in the exhaust (see: clogged cat), improper ignition timing, improper spark plug gap, bad igniter or coil, water or oil in the plug galley around the plug wire boots.

Check these and post back with your findings.

04-01-2010, 12:39 AM	#11
2genfun 3" Exhaust Join Date: Feb 2010 Location: Orlando, FL Posts: 65	yep regardless of throttle position...it'll flutter past 4k but its a struggle __________________ 88 targa. H&R springs, koni adustable shocks, 18" wheels, d&s rotors, goodrich brake lines, 7mgte in progress...

04-01-2010, 01:32 AM	#12
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Well, if it's lambda equipped (UDSM, CDM, JDM and most of the rest of the world market) then the ECU will pull enough fuel for close to normal operation in all cases except for throttle positions above 70%... or have you pulled the O2 (Lambda) sensor? What other mods are you running and have you actually tested the AFM (new, doesn't mean it's not broken, is it actually new)? Other possibilities are excessive knock, a restriction in the exhaust (see: clogged cat), improper ignition timing, improper spark plug gap, bad igniter or coil, water or oil in the plug galley around the plug wire boots. Check these and post back with your findings. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

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