PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

different IFRs for greentop 42#'s ?

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Old Jun 22, 2006 | 03:44 PM
  #21  
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didnt mean no disrespect homie Just trying to help. You need to stop babying that thing and run Ed already
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Old Jun 23, 2006 | 12:11 AM
  #22  
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If you are ceratain the injectors are Lucas 42's then don't go back the 'old'(very wrong) ifr table. Turn the maf off and start the VE tuning process. If LTFT's pegg +25 even after a few adjustments i'd look for other problems such as bad o2, fuel filter, leaks, ect ect, the list goes on.
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Old Jun 23, 2006 | 08:20 AM
  #23  
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Arent' the greentops SVO/Bosch and not Lucas ?

I will start my RAF tuning today lunchtime in gear and this evening in park, so hopefully will have a new RAF table tomorrow.

O2's are brand new with the motor swap. Fuel filter is pretty new. I'm hoping it's all in getting the tune straightened out.

Thanks for all the replies and continued help.

Rob (Bad30th)
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Old Jun 23, 2006 | 08:23 AM
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yes, the green tops are the svos
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Old Jun 27, 2006 | 03:15 PM
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Update - OK you guys were right , and I am making some progress.

New RAF table is in (gear/park) with the new IFR table, and I have started on SD tuning. Runs much better than with the old RAF table.

I think I know another reason why I was having such wierd results before (in addition to having the wrong IFR values) - turning the LTRIMS off doesn't reset them to 0. I was tuning in SD while it was still adding 25% fuel from LTRIMS, verified in the scanner. Once I used the VCM controls to reset the LTRIMS to 0%, the fueling seems to be straightening out using the wideband and tuning pri/sec VE, using paste special/multiply by half % to close in on the right values. I'm watching the LTRIMS to be sure they stay on 0 now, heh, which they have.

Hopefully will be finished up with SD tuning in a couple of days and can move on the the MAF, PE, knock/timing, etc.

So far so good, thanks for all the help !

Rob (Bad30th)
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