1992 Honda Civic VX. I love this car! - Page 2 - Fuelly Forums

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Old 04-17-2010, 10:46 AM   #11
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Ok, that is what I thought about the ECU on this car--looking around ebay and the net as we speak for one! Since I have the 5-wire o2 sensor, I can have both ECU's on hand and swap in the L00 for smog. I have no problem getting this car fixed as I plan on driving it as long as I can. Thanks for the info on the injectors, I'll be looking into that as well. Since I don't have the "shift" light, the numbers above are when I switch gears (more or less). That is more for me to let you know my driving style than anything else.

I do have my smog checking numbers and I'm not sure what they mean at all. It has numbers for both 15 mph and 25 mph. This may get wordy:

@15mph--
RPM=2476; %CO2=14.4; %O2=.3; HC (PPM) 'MAX'=138, 'AVE'=31, 'MEAS'=24; CO(%) 'MAX'=.84, 'AVE'=.10, 'MEAS'=.03; NO (PPM) 'MAX'=859, 'AVE'=237, 'MEAS'=475.

@25mph--
RPM=2305; %CO2=14.4; %O2=.1; HC (PPM) 'MAX'=112, 'AVE'=20, 'MEAS'=29; CO(%) 'MAX'=.73, 'AVE'=.09, 'MEAS'=.03; NO (PPM) 'MAX'=798, 'AVE'=199, 'MEAS'=632.
Test Weight=2375
Inspector Reason: High Emitter profile.

I'm not sure if there is anything else on here is useful, let me know if there is. I'm very interested in what one can learn from these numbers as I have no idea.
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Old 04-17-2010, 01:13 PM   #12
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Well you have too much NOX, just like my Civic... I don't know what the solution is to bringing down those numbers quite yet but I would like to find out and hopefully I will find out when I start working on my civic.
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Old 04-18-2010, 12:08 AM   #13
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Huh, any idea what the NOX numbers should be? I've read some about it and it could be a "lazy O2," bad catalytic converter, or many many other things that I don't know. I just want to make sure that I'm able to keep this little gem on the road. Thanks for the input, I'll keep looking around for ways to do this.

Quick note, I read here that the valves need to be adjusted every 15000 miles. Is that right? Once a year? Holy Crap.
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Old 04-18-2010, 12:48 AM   #14
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Well it's kinda a given but, at the very least the numbers (MEAS) should be the same or better than the AVG numbers. In the case of NOX, your NOX MEAS numbers are higher than the AVG. If you could get 0 or close to zero in all of the numbers, everything would be peachy but that's never the case with older vehicles.
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Old 04-18-2010, 05:21 PM   #15
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Originally Posted by Fetch View Post
It's actually quite fun. My VX hits an indicated 69-70 mph in 2nd gear at redline.
WOW, I just tried it. i only took it up to 45 though. i'll have to do that more often to clean out the carbon. The car continues to amaze me.
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Old 04-19-2010, 07:24 AM   #16
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Ha ha. There you go LarryJ! I'm not endorsing this all the time, but once in a while...

Anybody know where I can find a "federal" ECU? I've been searching ebay, but they don't have anything by way of p07-a00/a01. I'm stuck. I've found that I can get one for $499, but that is from Honda and I'm not gonna do that.
Thanks all, I appreciate the help!
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Old 04-19-2010, 01:44 PM   #17
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try craigslist
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Old 05-07-2010, 11:39 AM   #18
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I couldn't get to the firewall because the dash scares me (I had an experience). That got it quieter, but I still am looking around.
The firewall mat in my EX was removed before my purchase.
I picked a used one up (out of a SI) and installed it one Saturday (~1/2 day).

You will have to break the a/c system open (mine was already open) as well as unhook the heater lines (mine was due for a coolant flush).



Overall it was not 'that' bad of an install (I just trimed the mat where it went around the brake pedal) and the difference is amazing.


As for as 'cleaning the out carbon'... my D15Z1 has some time on the rev limiter each time I leave the gas station.
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Old 05-31-2010, 11:33 PM   #19
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Quick Update for anyone who cares.

Hey guys,
I just installed a p07-a00 ecu and drove about the state of Oregon. My first tank got me 53.7 Mpg! I'm pretty happy about that! I also know that it will come down a bit as I cannot fill my own tank in this state. I'm assuming that the tank was under-filled when I calculated it. I'm on the second tank now and am around 200+ miles at half a tank. So, fingers crossed....


This is one amazing car.

Will- Nice job with the dash!
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Old 07-06-2010, 12:55 AM   #20
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thats what i call weight reduction
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