hankd

Previous thread...

https://honda-tech.com/zerothread?id=588941

I'm using a Helmes manual and working thru the flowcharts for those codes.

1. ECU reset
2. Start engine (will barely start and runs like ***)
3. Check Engine Light (YES)
4. Disconnect the 8P connector from the TDC / Crank / CYL sensor
5. Measure resistance between B&F (for code 4) and D&H (for code 9)
6. 260-500 ohms? (YES)
7. Check for continuity to body ground on B & F (and D & H) individually. (I did this and got no resistance from any of the 4 prongs to ground, so no continuity, correct?)
8. Reconnect the 8P connector.
9. Connect the "Test Harness" (part #07LAJ-PT3010A) only to the main wire harness, not to the ECU (Where the hell do I get this "Test harness"?????? This is where I'm stuck...

10. Measure resistance between B15 and B16
11. 260-500 ohms? Yes, check for continuity. No, repair open in blu / grn and/or blu/yel.
12. Continuity? Yes, repair short in blu/grn between ECU and distributor. No, substitue a known good EDU and recheck. If symptom goes away, replace original ECU.

So I'm at step 9...does anybody know anything about this test harness I need????

Thanks in advance,
Hank

bill-71SS

put a new dist. in it.

hankd

Well, so far each step in the flow chart says that's NOT the problem and leading me towards the ECU (which I DON'T want to replace). I need to check around and see what each costs...

Thanks for the reply...

Chiovnidca

Is the inside of the distributor covered with brown dust?

hankd

I'm not sure...I haven't looked at it. What if it is???

Hank

Chiovnidca

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hankd &raquo;</TD></TR><TR><TD CLASS="quote">I'm not sure...I haven't looked at it. What if it is???

Hank</TD></TR></TABLE>
A bad bearing in the distributor housing can cause those codes. It usually accompanied by the brown dust from the bad bearing. Looking closer you will usualy see metal filings on the sensors.

hankd

Thanks man...I'll check that out!

Hank

JimBlake

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hankd &raquo;</TD></TR><TR><TD CLASS="quote">...
9. Connect the "Test Harness" (part #07LAJ-PT3010A) only to the main wire harness, not to the ECU (Where the hell do I get this "Test harness"?????? This is where I'm stuck...</TD></TR></TABLE>I think that test harness is a break-out box for the wiring harness that's plugged into the ECU. But they want you to plug it into the harness only, not the ECU, so you don't hit the ECU itself with your ohm-meter.

With skinny probes on your DMM you can unplug the harness & use the probes directly in B15 & B16 of the plug.

hankd

Thanks "JimBlake"...I'll keep that in mind...

Update...




Brown dust inside the cover...but also some oil???

bill-71SS

like I said before, replace it.

hankd

I am now ;-)

Autozone's lifetime distributor is $180...I need to see if that's the complete distributor or what though...

From Honda, just the distributor housing is $150...whole thing is about $300? from http://www.hondaautomotivepart...y.jsp

hankd

New destributor is on and she's running great again :-)

Thanks guys...

Hank

Chiovnidca