mt05

alright guys here it goes.

sr20det, z32 maf, 550cc injectors, dyno tune ( chipped ecu )

My problem is my car runs extremely rich at idle...and pretty rich under boost. At idle i can see anywhere from 10-11 on my afr gauge. Under boost i've noticed it gets around 10.9 and my coilpacks and ignitor get b**** hot! ( i believe that running so rich is causing my coilpacks to use more current to blow through the mixture, thus creating more heat, causing them to overheat? ) When cruising my afr is perfect, 14.6-15.2.
The things i've replaced
-fuel pressure regulator, installed gauge also. correct pressure set
-spark plugs. one step colder. gaped to .028
-fuel filter
- ignitor/coilpacks
- O2 sensor
- replaced 02 sensor on wideband too
- checked timing
i've also checked my ecu for codes, flashed a 55 which means no problems. I've checked my injectors for leaks, nothing. I've taken my whole harness out twice and looked over it for shorts. its perfect. I've checked all grounds also.

Could a faulty maf be causing all of my problems without throwing a code? I should also add that after driving it for a while it starts to lose power under boost. ( because of the hot ignitor and coilpacks, i know this for sure )

I'm open to any ideas people, help me out! thanks.

dfddfd2

Yes! The ECU checks the MAF sensor for shorts with engine not running, and opens with engine running. It also checks the difference between two consecutive readings, taken every 4 msecs., but at 1.92V, that test is not very sensitive.

Dave

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TunerCode.com

Mid-engine Integra GSR

mt05

replaced my maf today...same problem. ugh can't figure this out

trbob13

i honestly think it sounds like a bad tune. you can either throw an afc on it and crank it down or have them do a retune. i dont know who did it, but sounds like some numbers got mixed up

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boosted b13- sold
1998 200sx se-r, cat back apexi n1, air filter, and nology hotwires. sold
srt4 swapped 98 neon sold
5spd p10 sold
94 XE-R GTiR- sold
searching for my next b13

mt05

i'm going to see what my tuner says on friday he assures me its not the tune but i'll find out friday. i'll let everyone know what the outcome is. thanks guys!