i have a 88 CRX with a B16. does a Mugen chip totally eliminate o2 sensors? because im thinking about getting a race header in the future. thanks in advance.

 

from what i know that mugen program elimates the 2nd o2 but not all. just my 2 cents.

 

PR3.MDS
PROGRAM TYPE::::
DOHC VTEC program with disabled sensors (Mugen variant)
VTEC RPM POINT::::
[choose one] 4800 | 5200 | 5500 | 5700
REDLINE RPM POINT::::
[choose one] 8800 | 9000 | 9200 | 9500 | 10k
FUEL & TIMING::::
maps are enhanced moderately
SENSOR INFO::::
Disabled VTEC pressure switch
Disabled knock sensor
Disabled 2nd 02 sensor
Disabled speed limiter
DYNO TESTED?::::
[ not yet ]
NOTES::::
Most widely sold program I have for the PR3 ecu. Not only is this a great race program for the 88-91 civc/crx and 90-91 integra, it makes wiring up VTEC less of a hassle since all you have to wire up is the VTEC solenoid sensor!
Having tested the listed sensors disabled, it does not hurt anything performance-wise on a naturally aspirated engine. Gas mileage will slightly drop with this program.
ISSUES::::
A few people have reported that they have issues with a low idle/cold start, but once the engine warms up it runs fine. Also, when the A/C kicks on the idle drops low and sometimes the engine will stall.

Taken from JDMHondaparts.com.

 

actually, if the chipping is authentic mugen, both O2 sensors are bypassed....unless the programs that are copied are different..i'm running a real mugen pr3 in my car, and is disables both o2....just to let ya'll know

 

where did you get that chip from? how does the engine operate with out the o2? thats cool though.

 

hey thanks guys for all the advice. any more comments?

 

yeah where can i get the real mugen program will disabled o2 sensors.

 

sounds like a smog check nitemare tho

 

Smog check? Whats that? We arn't subjected to the sniffer test outside the city where I live. The mugen program is great. I run a VAFC to help cut back some of that extra fuel. The Mugen chip is also good for the LS/VTEC.

 

where did you get your chip from?

 

i got mine from locash racing w/ 10k rev limit and vtec x-over @ 5k, very good with cams and compression rise..

 

what sensors are disabled on yours ruby? does the place you got it from have a website?


Modified by NA CRX Si at 12:24 AM 4/24/2003

 

i think http://www.locashracing.com let me check on that we rewired mine for 2 o2 sensors...there is no knock sensor, that's it

 

yeah i emailed him and he just doesnt send the chip. does anyone know where i can get just the chip. and no not ebay.

 

well i can tell you that i did that and was very happy turnaround about 10 days if i remember but if thats too long to wait

 

i ordered my chip from Kenji. got it in a couple days.. haven't installed it yet though.. probably next week when i put in my ITR cams, intake manifold, jg throttlebody

i got the mugen chip with all sensors enabled, 5.5k vtec and 9K revlimit

oops.. did i say that out loud?


Modified by madeiniraq at 11:01 PM 4/23/2003

 

http://www.hyperducktuning.com/ has a diy kit where they send you the chip with two programs, you choose the programs, they have the mugen chip $35.

 

yeah i cant get a hold of him.

 

he usually replies to all of my e-mails.

 

i recently socketed my authentic pr3 mugen egu, and i have the bin file saved if you have a eprom programmer. This one does not require any O2 sensors guaranteed. PM me if you want the program.