Installing A/F Gauge

[A20A1]

Page 56 - 61 of the book shows you the jet locations...

Idle jets are #33 on the diagram and are held by #35 which screws into the front and rear of the carburetor.

the main jets are #19 on the diagram and srew in at an angle near the bottom of the float bowl

the air correction jets #94 sit inbetween the float bowl and the carb barrels.

and # 96 is the accel jet which sits almot between the 2 air correction jets.


Now the air correction jets is labled on the top ner the slit for the screw driver so you wont have to remove them.

The main jets are labled on the side of the jet so you must unscrew them to read the #'s

the idle jets must be unscrewed but you don't need to remove them from the holder since they are also labled on the side.

be careful not to sratch the jets when removing and reinstalling them.

[Mike's89AccordLX]

Alright Big A was $22 and in stock for standard products inc., Champion had me on hold for 13 minutes and I just hung up, NAPA was $26 and they need to order it. I'll just pick it up tonight, i'm sure it will be just as good as a bosch.

[A20A1]

Bosch was the first to make O2 sensors.... Lambda sensors... whatever.

[2old_honda]

napa has them for $24, The Champion site is down, and Big A dosent have a site.

NAPA is always expensive, I would go to champion or big A. I know that the stores where I live (not including NAPA) have them for $18, I am willing to bet that champion will have it for under $20

[Mike's89AccordLX]

I'll called them and they want $25 for it and the guy didn't even ask if it was carbed or fied, or what size motor I had. So I'm not going there. What I'll do is buy the Big A sensor and when I get to it I'll clean the old one and see if it works and if it doesn't I'll put the new one in.

[2old_honda]

good luck. I hope you can get this thing going.

[Mike's89AccordLX]

Alrighty, I just got the part home and I open the box and it has about a foot of wire and a butt connector on it already. The connector is for 14-16 and my wire is a 22. Is this going to cause a problem? What size wire did you guys use? I just found some wire at radio shack that was the same size as the gauge's wires. Could that be a problem that I am facing now (current changes?) Or is it fine to just use different wire connectors that will work with the 2 sizes of wires. I have some bullet connectors for a 14-16 and I have them for a 22.... maybe I should just use the 2 different connectors. Cause right now I have a 14-16 wire going into a 22 connector. Thanks again guys.

[2old_honda]

if the two different connectors fit into eachother use them. but if the 14-16 wire going into a 22 connector is a good solid connection then it will work too.

[Mike's89AccordLX]

Alright, I was worried that the two different sizes would matter or affect the readings. I'm going to put the new O2 sensor in tomorrow.

[2old_honda]

it wont affect the readings, just make sure all of your connections are good and solid. wrap the connections with electrical tape or heat shrink to make sure water and crap does not get into the connection.

[Mike's89AccordLX]

I have these water proof connectors, but I do wrap every connection with electrical tape. It's really cold here and I might have to wait a little while until I can find a place to do it.

[Mike's89AccordLX]

Alright now I'm having problems with getting the old O2 sensor off. I don't want to take off my headers, so I'm thinking if I use my dremel to cut off most of the old sensor off I could fit a socket on the sensor and get it off what do you guys think?

[Mike's89AccordLX]

Alright I have the new sensor installed and it's still not working right. This is what happens, when I'm driving and I press on the gas nothing lights up and when I let off the gas that's when it lites up and gives me the readings. This sensor I put in is made out of platinum so it must be pretty good. What do you think could be causing the gauge to be acting that way? Could it be a bad ground, or would the gauge not work if it was a bad ground. I really appreciate your guy's help with this gauge problem. I'm new to wiring so I'm clueless right now.

[MoonScryer]

I know others will disagree with me on this, but I had to run the ground wire all the way to the battery to get the gauge to read correctly (the power was from the 12v connectors on the fuse block under the dash). Since my o2 sensor sits right below the firewall (I had to move it since I only have one, and it was only reading two cylinders), I have a really short lead on the purple wire.

I did try a bolt under the dash, the engine block, the bolt on the shock mount, etc, etc., but everytime you turn the lights on or any electrical device, the reading went down into the lean side a corresponding amount - more accessories/electrical stuff on, the more it went into lean. After hooking it to the battery, the interference was gone mostly.

Hook the ground up to the battery - use copper multistrand wire, 16 gauge - and see if it reads a bit better then. It will not read right until it warms up, but if I'm right, it will. Also think about doing the power the same way, w/ a relay in between, and run the relay's open circuit wire to the power on side of some ignition source. Clean power, no switch.

[Mike's89AccordLX]

Thanks a lot for the advice. I was thinking that maybe the ground was bad. I'll try that and hopefully it works like it's supposed to. I have a 22 gauge ground wire that I could use. I should invest in some of those nice battery terminals for sound systems. If anyone else has some more advice please let me know. I'll keep you guys posted on whats going on.

[2old_honda]

you used that connector on the fuse box for the power right? you put it on connector# 1 correct? try using connector # 2 (the one in the middle) and see if that helps. *note- It probably wont fix anything but its possible.

Also make sure that you have a good ground. (make sure that you sanded the paint down to bare metal under the bolt that you used)

If none of that helped run a 18-16 gauge power wire directly off the battery and see if that does anything.

[Mike's89AccordLX]

I did use power slot one and I will try #2 tomorrow. Thanks for the ideas.

[A20A1]

Originally posted by Mike's89AccordLX
Alright I have the new sensor installed and it's still not working right. This is what happens, when I'm driving and I press on the gas nothing lights up and when I let off the gas that's when it lites up and gives me the readings. This sensor I put in is made out of platinum so it must be pretty good. What do you think could be causing the gauge to be acting that way? Could it be a bad ground, or would the gauge not work if it was a bad ground. I really appreciate your guy's help with this gauge problem. I'm new to wiring so I'm clueless right now.

You need a bigger idle jet perhaps.

Letting go of the gas increases vacuum when the throttle closes and the engine speed is still high. The increased vacuum pulls out more gas from the carb... and the air restriction causes the mixture to get richer. So thats what your guage is picking up.

What gets me worried is that the guage doesn't rise when you press the gas... but with the 60 pump jet it should go up.

[Mike's89AccordLX]

I'm a little tight for money right now b/c I'm going to Mazatlan, Mexico on Friday the 28th. I need lots of alcohol money b/c I'm going to be there for 10 days. My parents have a time share down there at this resort. But, I remember you wanted me to list my jet sizes when install the accel pump jet. Are all the other jets right in that same area? And what other jets do you think I should purchase in the near future. My birthday is in April on the 20th so I'll have some more big cash rolling in here soon. I found out my girlfriend bought me Metallica concert tickets for this summer here in MN. It's snowing here so I will try to run the ground to the battery and switch the power plug thing.