Hondata

Progressive Nitrous
Like the boost control tab. Perhaps using the same PWM output pin (if no others are available)
duty cycle vs RPM vs Gear table
Solenoid trimming via wideband AFR (even more safety)
switch to change settings on the fly (much like lowboost/hiboost)
with all of the limits as the ...

So is it a 12v peak waveform?

Edit: Nevermind I just found it... its a 5v pulse.

Hello, I am wiring up an aftermarket gauge cluster (koso rx2n) and I need to know a few things about the VSS signal waveform coming out of the ECU A18/ C101 pin3 for the speedometer.

What is the peak voltage?
What is the frequency in relation to vehicle speed (I just need a general ball park ...

I never updated this thread. Yes the 234-9004 worked.

E1 and E7 and both open collector outputs. Many people wire them to +12V directly, which burns out the ECU.

Why not just copy the wiring diagram which is known to work?

IF you trace out my diagram it should be the exact same as the Hondata one. I was just curious about the 12v going into the ...

This is what I have come up with.

http://www.hondata.com/techk20wiring.html
I am using this^ page to modify an existing wiring harness (non-honda)and the sentence below is confusing to me.

Do not wire the main relay (E7) or fuel pump (E1) to 12V. This will damage the ECU. Both E1 and E7 are outputs which switch on relays by ...

I searched on ebaymotors for all three numbers... just so happened there was one 234-9004 for 55 shipped... the next cheapest was like 155 so i think it may have been a typo. Guess I just got lucky

From what i have gathered, Denso is the OE manufacturer of the primary sensor so all of these should work. The difference between them is wire length.

Denso # and Application and length
234-9004 RSX 5speed (02-04)and civic Si (03-05) 10.24in
234-9005 RSX-S (02-04), 01-05 civics (non Si), 02-04 ...

Does that include the 02-04 RSX type S primary as well?

Denso # Application
234-9004 RSX base 5speed and civic Si
234-9005 RSX type S, 02-05 civics, 02-04 CRV
234-9006 RSX base auto transmission


Will these all work or just one of them? And do you know what the difference is between them (Is it ...

Does that include the 02-04 RSX type S primary as well?

Denso # Application
234-9004 RSX base 5speed and civic Si
234-9005 RSX type S, 02-05 civics, 02-04 CRV
234-9006 RSX base auto transmission


Will these all work or just one of them? And do you know what the difference is between them (Is it ...

Which OEM primary o2 sensors are wideband that can be used with K-pro? is it only the Denso 234-9005?

Thank you