I'm running a stock 93 h22a with just i/e. I have a B&M fuel pressure "ramp?" (basically you can only adjust the pressure up) I just bought a Walbro 255lph fuel pump and I'm on stock injectors. Right now I'm all motor and eventually I will go turbo, but not this year. This setup is making me run extremely rich and I'm blowing black smoke out the tailpipe with every VTEC engagement. This is also running on the stock JDM P13 Ecu.

It is a borrow ECU and soon I plan on getting a chipped p28 with type-s maps. These maps I believe will only worsen the problem as it stands now.

Is there anything I can do to street tune this extra fuel out, without buying anything new?

 

You should be able to use the fuel pressure regulator to lower the fuel pressure also. I would suggest to get it on a dyno and check the AFR and adjust the regulator accordingly.

 

the janky way would be to buy a v-afc and elan it out till it stops smoking which i see as unsafe just one option. I would take it do a dyno and sue a wideband to see how rich it really is running. or trying putting yuor stock FPR back on

 

Any thing else? I'm looking to not spend any more money. I'm broke and I hate looking like a ricer that pumped up his FPR.

 

If you are straped on cash and need a fix which you could also use later pick up and Autometer AFR gauge and tune off of that. Beware they aren't the most accurate thing in the world though.

 

same set-up as you..... 93 cx h22a swap b&m fpr and 255 walbro pump.... i thought i was running way rich just because of the set-up but when i pulled the spark plugs the arch is white and the ring is black... i figure if i ran rich my plugs be all black!... but yeah i notice that too i can't lower the psi...... mines sitting at 43psi at idle thats the lowest i can get it, but when i give it alittle throttle i see it bouncing to 38psi..... but i rather be rich then too lean..