mastahh5

Hello,
I know that someone who put first post with support request is not well liked, nevertheless I would like to ask You for help, because I saw a lot of people in other topics with huge experience.
I read a lot of them, I made small progress, but still not problem is not solved.

My Honda 6G, sedan, 1.4iS Gasoline + LPG, D14Z2 has no spark.

Symptops were: one day I observed irregular work of engine (check engine start to blink). After few kilometers, I stopped, I kept motor running working on neutral and it suddently switched off. After this I cannot start again.

I found one high voltage cable broken. After this I replaced cable and broken Igition Coil Fuse (no. 9, 15A).

After this I cannot start the car. I have no spark. I have voltage on power yellow-black cable in the connector plug just before the distributor, but I don't have voltage on coil.

I dismantled coil, supplied directly with battery + bulb and looks OK.
Voltage "disappear" in HITACHI E12-303 module in distributor, but now I don't know if:
- module is broken
- module doesn't give voltage, because of something?

What I should check? I will be grateful for any support.

Former User

Sounds like there's a short/open in the Blk/Yel wire of the distributor. Locate and fix, or replace distributor.

mastahh5

Thank You very much, I will check it, I have only one more short question (manual explanation is clear, but just to be sure, if I didn't damage earlier)

there is any sensor which could not give signal for ICM to give voltage for coil? - something like Hall sensor, or something different, which could impact for it?
As I said on the plug I have connection

Thanks one more time.

mastahh5

Hello again,
Today I tried to check according to Your suggestions ICM.

Fortunately I discovered that fuse which was previously OK, was burnt, so I replace it.

After this I had the voltage on the coil, but now I suppose that coil is the rootcause.
I have TEC TC08-A and HITACHI E12-303 module.

I measured resistance :
on the primary => 1 Ohm (vs 0.6-0.8Ohm),
on secondary I received: 8kOhm vs 12-18kOhm

I additionaly disconnect wires from ICM and measured voltage between
+ and body ground - ~ 12V
- and body ground - also ~ 12V.

I suppose that for sure I should change the coil, could You just confirm?
And there is any recommended replacement if I original spare will be not available? I found on the internet:
IGNITION COIL

TC08A,30510PT2006, 30510P73A01,30510PT2026,30510P73A02,30510P73A02,ZS 275,UF-85, UF-89T

Replaces:
DELPHI:GN10068,GN10068-11B1
BERU:0040100275, ZS275
BOSCH:F000ZS0 116
HITACHI:TC08A
HONDA:30510PT2006,30510P73A01,30500PT2006,30510PT2 026,30510P73A02
WELLS:C873
BOUGICORD:155066
BREMI:11915
C.I.: XIC8161
LUCAS:CAV DLJ313
METZGER:0880069
ROVER:NEC100530
STANDARD:5029406 11579 3
TESLA:CL501
STANDARD SMP: UF-85,UF-89T

Which replacement would be OK?

On the other hand I had one question - in the above manual there is information
to check voltage betwen body ground and BLU or WHT/BLU wire.
To be honest I didn't have blue wire available (in the attached photos) - could You tell me for what it is? (point 4) if it could be not available

And about point 5 - what does mean ECM/PCM Connector A? It is the connector plug just before distributor?

Thanks.

Former User

After replacing fuse 9, did you test for spark at the plugs?

For the primary coil resistance reading, you must subtract the internal resistance of your meter.

mastahh5

Yes, I checked for the spark after fuse 9 replacement, but still no spark.

Yesterday I received new coil (Magneti Marelli replacement) and I replaced it.
After this motor successfully started and it looks that problem is solved.

Just to add for any other people in future - I also measured resistance of new coil.

Primary - Old: ~ 1.0 Ohm, New - same (internal resistanace about ~ 0.2-0.3 Ohm) => so this on old was also OK.

but on Secondary: old - ~ 8kOhm, new - ~ 15kOhm.

Unfortunately I don't have idea, what was the root cause of it (I only found on the plastic housing of coil some places where it was a little bit melted, so maybe just lifetime of coil was end

Thanks for Your help.