#7 cold individual cylinder fuel trim
06-18-2012, 03:12 PM
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#7 cold individual cylinder fuel trim So I have a 93 Camaro z28 auto. My camaro has a 96 Roadmaster block, heads, and injectors, 94 trans am harness and computer, Lt4 hotcam, 1.6 rollor tip rockers, upgraded valve springs and rocker studs, electric water pump, Pacesetter long tubes and y pipe, Magnaflow cat, Hooker Aerochamber cat back, K&N cold air, SLP air foil, and a 4l60e.
I have been tuning the car using Tunercats, at the moment I'm trying to balance the injectors at idle using the individual fuel trim tab. I have been reading exhaust runner temps with an IR gun, so far this is working on cylinders 2,4,6,8 and 1,3,5. My issue is cylinder 7 wont make any noticeable change in temp, I have confirmed I have spark at the plug, swapped the injector with one I had lying around and made sure the headers are good and tight. The temp on #7 is around 130 degrees farenheit when number 2,4,6,8,1,3,and 5 are around 250 degrees. So what are you guys thinking?
Thanks
I have been tuning the car using Tunercats, at the moment I'm trying to balance the injectors at idle using the individual fuel trim tab. I have been reading exhaust runner temps with an IR gun, so far this is working on cylinders 2,4,6,8 and 1,3,5. My issue is cylinder 7 wont make any noticeable change in temp, I have confirmed I have spark at the plug, swapped the injector with one I had lying around and made sure the headers are good and tight. The temp on #7 is around 130 degrees farenheit when number 2,4,6,8,1,3,and 5 are around 250 degrees. So what are you guys thinking?
Thanks
