89 civic HB. no spark. not main relay or ignitor

I have a 89 civic hatchback 1.5 liter that has been sitting for about a
year.
Has no spark.
I resoldered the main relay just in case.
when I ground pin 4 of the ignition control module (ignitor) I get a good
spark from coil.
I have 11.7 volts at coil when cranking.
no signal coming from ecu to ignition module.
no error codes on ECU. no lights at all on it.
I dont have any wiring diagrams.

where to next?
How can I test the ECU?
Is there any jumper to force the ecu to flash anything to confirm it is
working?
thanks. Roy

 

Hey Roy

I have never dealt with an 89 Civic, but your rotor is indeed turning,
right? (just a sanity check to see if the timing belt might have broken -
you didn't mention it, but you probably checked it).

Also, was wondering if it could be the crank angle sensor? It should be
inside the distributor - probably a hall sensor. Not sure how to test those
without a scope because the levels are very low/fast and can't see them with
a voltmeter - static test may not mean much. Its signal goes back the ECM
and drives your ignitor. Perhaps make sure this sensor goes back to the ecm?
Also check to see if the wire from the input of the ignitor to the ECM isn't
broken?

My manual only goes back to 96, so unfortunately can't help you with a
schematic - maybe someone out there can help you with that.


Hope you find it soon.
Remco

 

Hey Roy

I have never dealt with an 89 Civic, but your rotor is indeed turning,
right? (just a sanity check to see if the timing belt might have broken -
you didn't mention it, but you probably checked it).

Also, was wondering if it could be the crank angle sensor? It should be
inside the distributor - probably a hall sensor. Not sure how to test those
without a scope because the levels are very low/fast and can't see them with
a voltmeter - static test may not mean much. Its signal goes back the ECM
and drives your ignitor. Perhaps make sure this sensor goes back to the ecm?
Also check to see if the wire from the input of the ignitor to the ECM isn't
broken?

My manual only goes back to 96, so unfortunately can't help you with a
schematic - maybe someone out there can help you with that.


Hope you find it soon.
Remco

 

Yes I need to check the pickup coils. After I posted I found a wiring
diagram of the distributor. It shows 3 pick up coils: cylinder, crank and
TDC.
shows to be 460 ohms. I'll check them tomorrow.
yes rotor turns.

 

Yes I need to check the pickup coils. After I posted I found a wiring
diagram of the distributor. It shows 3 pick up coils: cylinder, crank and
TDC.
shows to be 460 ohms. I'll check them tomorrow.
yes rotor turns.

 

'We'll have our own house.' And Malcolm got all excited
* and he said, 'I'll have my own bedroom?' And the guy said 'Yes, you will.'"

It is safe to say this directly contributed to the burning and subsequent
death of Betty Shabazz. A distraught, torn, ten-year-old suffering the
effects of this persecution.

He had been taken away from his mother because of Fitzpatrick.

NBC Newschannel 4 NY, on the death of Betty Shabazz:

"Police say the boy was upset he couldn't live with his mother."


Kunstler forced the Government to drop its case...

* "...Shabazz...", The New York Times, June 8 1997
*
* Prosecutors dropped the case when it became
* clear she had NOT committed to the crime.

...and instead settle for her getting professional counseling.

Mainly to recover from what Mr. Fitzpatrick and the FBI did to her.

Mr. Fitzpatrick was paid $45,000 of our tax money for his services.

Mr. Fitzpatrick is a cocaine addict.

Remember, it's the 1990s now: same as it ever was.



American citizens are just pawns to be manipulated
by the U.S. intelligence and law enforcement agencies.

Dirt.

Or worse.


* "Above the Law", by David Burnham, ISBN 0-684-80699-1, 1996
*
* At 4:00 A.M. on December 4, 1969, for example, a special fourteen-man
* squad of Chicago police officers raided a house used by the Black
* Panther Party. During the shoot-first-ask-questions-later raid, police
* fired at least ninety-eight rounds into the apartment. Illinois chairman
* Fred Hampton and Peoria chairman Mark Clark were killed.
*
* An FBI informant gave the bureau specific information about where
* Hampton was probab

 

'We'll have our own house.' And Malcolm got all excited
* and he said, 'I'll have my own bedroom?' And the guy said 'Yes, you will.'"

It is safe to say this directly contributed to the burning and subsequent
death of Betty Shabazz. A distraught, torn, ten-year-old suffering the
effects of this persecution.

He had been taken away from his mother because of Fitzpatrick.

NBC Newschannel 4 NY, on the death of Betty Shabazz:

"Police say the boy was upset he couldn't live with his mother."


Kunstler forced the Government to drop its case...

* "...Shabazz...", The New York Times, June 8 1997
*
* Prosecutors dropped the case when it became
* clear she had NOT committed to the crime.

...and instead settle for her getting professional counseling.

Mainly to recover from what Mr. Fitzpatrick and the FBI did to her.

Mr. Fitzpatrick was paid $45,000 of our tax money for his services.

Mr. Fitzpatrick is a cocaine addict.

Remember, it's the 1990s now: same as it ever was.



American citizens are just pawns to be manipulated
by the U.S. intelligence and law enforcement agencies.

Dirt.

Or worse.


* "Above the Law", by David Burnham, ISBN 0-684-80699-1, 1996
*
* At 4:00 A.M. on December 4, 1969, for example, a special fourteen-man
* squad of Chicago police officers raided a house used by the Black
* Panther Party. During the shoot-first-ask-questions-later raid, police
* fired at least ninety-eight rounds into the apartment. Illinois chairman
* Fred Hampton and Peoria chairman Mark Clark were killed.
*
* An FBI informant gave the bureau specific information about where
* Hampton was probab

 

Typically, you'll need to crank up to 10-18 seconds before a code
is set, hopefully the starter is still in once piece. You might check
and see if the 'check engine light' goes on and off normally. You
can always hookup a sensitive DMM on these, likely a reluctor,
sensors and watch the AC readings for subtle changes...no changes
probably something wrecked in the distributor.

 

Typically, you'll need to crank up to 10-18 seconds before a code
is set, hopefully the starter is still in once piece. You might check
and see if the 'check engine light' goes on and off normally. You
can always hookup a sensitive DMM on these, likely a reluctor,
sensors and watch the AC readings for subtle changes...no changes
probably something wrecked in the distributor.

 

coils read 400 ohms each. that sounds about right. there are 2 on this
car. the third pickup would be if it had fuel injection which it doesnt
have.
ECU???
I have a 15 amp fuse under the hood labeled ECU.
With ignition switch on, when I pull fuse and put volt meter across
terminals, where fuse should be, I read no voltage!.
I switch to amps and put leads across terminals I read 0 amps!
No load at ECU?
At fuse block it is a tan or yellow wire with white stripe and 2 silver
dots. I could not find a wire at ecu with those colors
Where does power to ecu come from?
Is there an easy test to see if it has power? some kind of selftest..
I need a wiring diagram. Anybody have one?

Roy

 

coils read 400 ohms each. that sounds about right. there are 2 on this
car. the third pickup would be if it had fuel injection which it doesnt
have.
ECU???
I have a 15 amp fuse under the hood labeled ECU.
With ignition switch on, when I pull fuse and put volt meter across
terminals, where fuse should be, I read no voltage!.
I switch to amps and put leads across terminals I read 0 amps!
No load at ECU?
At fuse block it is a tan or yellow wire with white stripe and 2 silver
dots. I could not find a wire at ecu with those colors
Where does power to ecu come from?
Is there an easy test to see if it has power? some kind of selftest..
I need a wiring diagram. Anybody have one?

Roy

 

Found the problem.

The dealer came thru with a wiring diagram for an '88 civic wagon. Close
enough.
There are multiple fuses to ecu.
In the under dash fuse block, fuse 14 (I forget what it was labeled but it
wasnt obvious) was missing. I guess the previous owner had removed it and
didnt replace it.
It is control power for the main relay AND feeds injectors and fuel pump.
without main relay pulling in, no power was passed to ecu( from fuse 2 and
fuse 37).
replaced 15 amp fuse and got spark. for a few seconds anyway.
then fuse blew again.

Ended up being a shorted fuel pump

Thanks for all who responded.
Roy

 

Found the problem.

The dealer came thru with a wiring diagram for an '88 civic wagon. Close
enough.
There are multiple fuses to ecu.
In the under dash fuse block, fuse 14 (I forget what it was labeled but it
wasnt obvious) was missing. I guess the previous owner had removed it and
didnt replace it.
It is control power for the main relay AND feeds injectors and fuel pump.
without main relay pulling in, no power was passed to ecu( from fuse 2 and
fuse 37).
replaced 15 amp fuse and got spark. for a few seconds anyway.
then fuse blew again.

Ended up being a shorted fuel pump

Thanks for all who responded.
Roy