Some Lterm ?'s and observations.
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From: The Confederacy
Some Lterm ?'s and observations. Ok, this is what I've done.. I have 2 cars. A 98 Z and a 2002 Z. The 2002 just has a lid and a catback. The 98 has a stall, gears, mac headers, borla exhaust, lid, FRA, ASP pulley, and a ported MAF sensor... remember that last one. The "stock" 2002 is much faster at the track... by 5 mph and pulls the 98 bad on the street, so it kinda upsets me that my 98 is so slow... so I autotapped both of them yesterday and found some things.
the 98... while in "driving around mode" not WOT usually sees a Lterm of 10 to 15% (lean) and at wot it sticks right at 15%... but the o2 voltages are not too lean, right around .880 to .900.
the 2002.. while "driving around" is dead nuts 0% and at WOT it is 0% and the o2 are .9 to .91 with just a slight amount or knock retard every now and then.
Is this slightly lean condition on the 98 making it run bad? Can I cure it by going back to a stock MAF housing, or will it take a MAF translator to fix it? Pleas help.
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the 98... while in "driving around mode" not WOT usually sees a Lterm of 10 to 15% (lean) and at wot it sticks right at 15%... but the o2 voltages are not too lean, right around .880 to .900.
the 2002.. while "driving around" is dead nuts 0% and at WOT it is 0% and the o2 are .9 to .91 with just a slight amount or knock retard every now and then.
Is this slightly lean condition on the 98 making it run bad? Can I cure it by going back to a stock MAF housing, or will it take a MAF translator to fix it? Pleas help.
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Re: Some Lterm ?'s and observations. i'd try the stock MAF and see what happens.
The 02s are definitely faster but 5 mph is too much of a spread unless the 02 is a 6-speed.
The 02s are definitely faster but 5 mph is too much of a spread unless the 02 is a 6-speed.
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From: The Confederacy
Re: Some Lterm ?'s and observations. Yes, the 02 is a M6 and it has a catback exhaust and a lid. Ran a 12.92 @ 109.1 The 98 has a stall, gears, headers. etc and it ran a 13.1 at 104.5. The 98 ran a 1.92 60, the 02 ran a 1.96 60ft time.
