i think it should stop a bit if u put the stock cat converter back on i know before i gutted mine it never backfired

 

I will put money the mugen chip is NOT programmed to the engine.

 

Agreed. Either it is a standard Mugen chip, OR it is tuned to the car. If it is running constantly rich, I can assure you it's not tuned and is most likely hurting the power potential of the car.

If you are running no cat, swapping one back on will make the noise less obvious, but the car will still run poorly from being too rich.

 

b16aEGcivic.....I bet ur right! Can I get the ecu re-chipped or should I just buy another ECU....just to re-cap currently I have a p28 w/mugen chip....b16a 1st gen w/ '93 gs-r head & m/t (used to be an a/t).

The guy said he gave the company (or whoever sold the ecu to him) his '93 Del Sol ecu & $100.00 for this one in the car now.

So now what to do next......replace cat converter to stock or new ecu......to stop the stinky fuel smell & popping sound from exhaust.

I have to get it 100% if it means re-doing the car from the ground up
ok so it's not that extreme

 

I would rec. purchasing a p30 ecu....you can prob. sell your chipped p28 for about the same price it would cost to scoop up a p30

 

p30 = $100-$150 on ebay...is that about right?

Is there any other resources to find what I need.....u guys r the BEST!

~Kiersten

 

has it done this all the while since you bought it or just started recently?
I'd be checking plug wires, plugs, ignition timing, etc if it just started.

Picking up a P30 would be a good idea, BUT the P30 also requires the knock sensor, which the car may not be wired for right now. it may require more work to get it to not throw a CEL on you.

Personally, I'd stick with your P28 and pick up a different chip for it. There are many out there, but http://www.hyperducktuning.com/ is one of the few I trust.
plus he has reviews on his site....
Mugen program: Dyno/Tests: Runs fairly rich, good power. Knock sensor disabled. Excellent program for all out power. On mild applications it tends to run rich.
I'd say for your setup the SuperChip program would work the best.
VTEC: ~5500rpm
Rev limit: ~8200rpm
Dyno/Tests: Excellent program overall, based heavily on Euro B16A program. Very simliar to stock maps with minor tweaks. 250-350miles on a tank without running lean on B16A motors and stock b18c motors (might require FPR). Does not work on JDM P30/P08 ecu. Knock Sensor disabled

I do not recommend the J's Racing program for the P28, it does strange undesirable things with VTEC on the highway.

if your P28 is all ready chipped, installing a different one is as easy as the five screws on the cover and pull out the chip and install another one, 10 minutes max.

 

another option would be to contact PhiZ and have him re-chip your p28 with a stock b16a fuel map and tables etc.

 

OMG.....so many options!
I have a guy asking to swap my chipped p28 for his stock p30, but now it seems like it might not be such a good idea....if I am not wired for the knock sensor?

So it's as easy as replacing the chip myself...seems way to simple....but maybe I'll try it before ditching my p28.

Relic1....thanks for all that info....I have only had the car for 2 weeks (I haven't licenced it yet as it has to pass a few inspections here in Canada & I am waiting for the SRS system to be re-installed) but yes it has ran rich since I started it for the first time....the previous owner says it has always done that since the B16A was put in (and I am assuming the ecu at the same time)....and it never backfired before the B16A either.....so u figure the ecu chip is the prob, rather than the exhaust (cat converter)

Thanks again for the info.....I have a bit of time to decide what I am going to do.....about 2-3 weeks before it's on the road =(

~K

 

http://cgi.ebay.com/ebaymotors/ws/eB...RK%3AMEWA%3AIT

this was the p30 to swap my p28 with