Lean after injector swap.
04-13-2008, 07:26 PM
#11
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mods in sig. Stock pump returnless. I thought they were too steep. I have another set that isnt as steep. Cause even the stock IFR I just put the stock ones back in until i get somethin figured out. Not real sure how good they are working as i havnt drivn it yet. Should i jsut pick up a new set of O rings from the stealership.
04-14-2008, 08:28 PM
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You will definately be adding fuel with the IFR numbers you posted above. If you are using the injectors 17113739, your scaling should mirror what I posted above. Give it a try and see if the LTFTs don't drop to a better near 0 number.
04-14-2008, 09:58 PM
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I put ur numbers in okie. My LTFT are at 25percent sometimes still. Will autove clear this up. Let me add that on the W4m tune that i had my LTFT were at 19.5 percent. I am throwing the codes po171 174 i think. Lean bank 1 and 2. Is this just because the trims are maxed. I did put new o rings in. HELLP
04-15-2008, 03:33 PM
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something is definately not right then. where are you getting the high + LTFTs at? is it across the board or mainly in the lower MAP areas 40 and lower? you mentioned AutoVE, so i assume you have EFI Live? get some time on a scan and post up a pic so we can look at it. meanwhile double check that everything is buttoned up tight and no un-metered air is getting by the MAF. check the CCV tube that runs from the right valve cover to the intake air tube to make sure its sealed up good, and maybe clean the MAF with some contact cleaner.
04-15-2008, 03:47 PM
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Let me add some details. I will add a log with the high trims pointed out. THey just poke up in some areas. RIght now the truck is running of a w4m ve table. It hasnt had a autove done yet because i started over after messing up a wideband connection. Before the injector swap my ltft were positive 19.5 percent anyway. It drives fine and will stay round 14.7 with normal CL oscillations. WOT it falls to about 12.3. But if i drive it for 20 minutes it will pop a SES light. Then comes each bank lean code. I may try to run a little autove to see if the trims will come down and stay. The log is mainly for the purposes of the wideband and ltft
Last edited by charcold-bowtie; 04-15-2008 at 03:53 PM.
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