swaping throttle body
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swaping throttle body
i like to know what involve into swaping a 98 post TB for a 99 no post TB on my L36 the only difference is the maf part number
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you mean 00 postless right?
and i was asking this because some say you only need to unplug the batt for the PCM to learn new fuel curve is this true
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Originally Posted by firebuick
and i was asking this because some say you only need to unplug the batt for the PCM to learn new fuel curve is this true
The safe way to do this is with a tuner (or a vendor PCM, or at least an AFC or MAF translator device). And if you're going as far as a tuner (which I know you will, eventually), you might as well plan for a modded, possibly P&P'd, newer postless L67 TB
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you run the very real risk of going too lean
my 02 is between 905 and 915
maf freq im at 8975 never in the 9000 range
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Originally Posted by firebuick
you run the very real risk of going too lean
my 02 is between 905 and 915
maf freq im at 8975 never in the 9000 range
(All this is after fuel trims have re-learned, of course)
BTW, that'* your WOT O2 readings, right? That sounds about right to me for the overly rich factory PCM setting...you'd be able to get better WOT power if you could lean that out (to maybe 880-890) without inducing KR.
Also, your MAF frequency readings sound right to me for your stock '98 L36 TB with your current mods.
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thank you andrew that very helpfull for me
and yes my 02 is at WOT
so if im rich from the factory whit the postless TB i should be ok
oh and which maf should i use in the postless TB the stock one or the one from my 98
that the TB i got form tj last night after cleaning
and yes my 02 is at WOT
so if im rich from the factory whit the postless TB i should be ok
oh and which maf should i use in the postless TB the stock one or the one from my 98
that the TB i got form tj last night after cleaning
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Originally Posted by firebuick
so if im rich from the factory whit the postless TB i should be ok
Switching to another set tuned for each other will still leave you rich. You need to change your mechanical setup in some manner (first priority) or tune it out (second priority).
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Originally Posted by firebuick
oh and which maf should i use in the postless TB the stock one or the one from my 98
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