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Old 03-29-2006, 01:05 AM   #1 (permalink)
sohclovin
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Join Date: Mar 2006
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REALLY need HELP tunning JDM H22A!! PLZ!!

Okay i recently bought a project car from someone i know, he bought it from some kid who dumpped a BUNCH of money into it but could never get it to run right..
First off it's a 1993 Honda Prelude SI with a JDM H22A swap, mods as follows:
STOCK P14 Non-Vtec ECU
AEM v2 Intake
Flared STOCK Throttle Body
Skunk2 Intake Manifold
DC Sports 4-2-1 Headers
Magnaflow Test Pipe
DC Sports Cat-Back Exhaust
Skunk2 Adjsuatble Cam Gears
AEM High Volume Fuel Rail
STOCK Fuel presure regulator
AEM Light Weight Pulleys
Unorthadox Underdrive Crank Pulley
Apexi Vpac SAFC II
EGR Blocked Off
MSD 6A Ignition Box
MSD Blaster 2 External Coil
MSD Ignition Wires
HKS Hyper Ground + Volt Regulator
Fidanze Racing Light Weight Flywheel
ACT Stage 3 6-Puc Racing Clutch
Here are the problems..


When you start it up with the distributer all the way retarted, it idles at like 500-600 rpms and DIES eventualy if you don't keep it alive with the gas pedal.. you can hear it missing.. when it warms up it idles at around 800-1000 but you can Hear it miss and feal a good loss in power when you accelerate..

When you start it up with the distributer all the way advanced, it starts up at idles at 800-900 Rpms and doesn't die.. but you can still hear it miss every now and then.. and you can still feel power loss though out the power band..

Also when cruseing at part throttle you can fell the car miss and jerk back and forth, almost like it's lunging, obvious missing and knocking...

At idle if you stand behind my car your eyes water within seconds from all the gas fuems.. i mean it's BAD.. you can smell gas in the car, out of the car, and when it hits v-tec there is black smoke, only a little...
Fuel pressure gauge reads 36-38 PSI..

If i advance the Cam Gears it seems to run worse, reguardless if i retard or advance the distributer.. and if i retard the cam gears it runs like straight CRAP..
so i have the cam gears set at TDC..

The car NEVER over heats, and uses VERRY little oil.. there are NO oil leaks and NO fuel leaks... and i'm PRETTY sure there are NO vacuums leaks, i mean there is NO idle surge except when it misses the RPMs drop for a split second..

The Apexi is set to DEFAULT.. there has been NO advanceing of ANY fuel curves from the Apexi at ALL.. everything reads 0...

I just don't understand it.. i mean i KNOW i'm running WAY too rich, but i can't figure out why.. i'm starting to think it doesn't have to do with my timing, but with my fuel curve.. maby because my ECU is the stock non-vtec ? maby the Apexi is messing things up ? what about having the EGR blocked off, i know that can cause spark knock..
i'm thinking about putting an AEM Adjustable fuel pressure regulator and turning the fuel down, but i don't know..

Also when i Rev to 6000+ rpms and i push the clutch in i hear a grinding noise.. but this is the ONLY time i hear it, when i'm engaged in Vtec and revving past 6k Rpms and i push the clutch .. i'm thinking maby pilot bearing ? because i can engauge vtec and shift at 5.5k-6k and it wont make the noise... what could this be ?

And last but ot least, my tranny has a nubby grind in 5th gear.. it ONLY happons if your revving above 3k and shift into 5th.. below 3k it wont grind.. is this just a syncro going out ? is it easy to repair ? is it worth it ?

PLEASE if ANYONE can think of ANYTHING that might help let me knoW!!

-Joe
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