99 Civic HX - No spark after car warms up.
#1
Honda-Tech Member
Thread Starter
Join Date: May 2002
Location: California
Posts: 3,047
Likes: 0
Received 0 Likes
on
0 Posts
99 Civic HX - No spark after car warms up.
Hey guys, I have a quick problem that I'd like your help with.
My car: 1999 Honda Civic HX w/CVT transmission.
My car died the other day after idling for 10 mins. Immediately I checked for spark, There was none. So I thought it was the distributor. Since I've had plenty of distributors go bad in my Honda owning life. I changed the distributor with a brand new OEM model. Drove the car home, same thing happened. Car died after warming up. No spark. When it cools down there is spark.
Summery.
* 1999 Civic HX
* Car dies and won't restart after warming up
* No spark when hot
* Has spark when cool, and will run until it warms up.
* Replace distributor with a new OEM unit, new cap, rotor, igniter, coil, etc
* Car dies and won't restart after warming up. (No Spark)
* Has spark when cool, and will run until it warms up.
*No CEL's
This is where I'm at right now. From the research I've been doing, I've seen a few theories.
1) Distributor (ICM, Coil, Igniter, Etc)
2) ECU
3) Map Sensor
4) Coolent Sensor (Not supplying enough fuel when warm)
5) Main Relay
Thank you for the help!
My car: 1999 Honda Civic HX w/CVT transmission.
My car died the other day after idling for 10 mins. Immediately I checked for spark, There was none. So I thought it was the distributor. Since I've had plenty of distributors go bad in my Honda owning life. I changed the distributor with a brand new OEM model. Drove the car home, same thing happened. Car died after warming up. No spark. When it cools down there is spark.
Summery.
* 1999 Civic HX
* Car dies and won't restart after warming up
* No spark when hot
* Has spark when cool, and will run until it warms up.
* Replace distributor with a new OEM unit, new cap, rotor, igniter, coil, etc
* Car dies and won't restart after warming up. (No Spark)
* Has spark when cool, and will run until it warms up.
*No CEL's
This is where I'm at right now. From the research I've been doing, I've seen a few theories.
1) Distributor (ICM, Coil, Igniter, Etc)
2) ECU
3) Map Sensor
4) Coolent Sensor (Not supplying enough fuel when warm)
5) Main Relay
Thank you for the help!
Last edited by RyanAutry; 03-25-2014 at 12:31 PM.
#5
Honda-Tech Member
Thread Starter
Join Date: May 2002
Location: California
Posts: 3,047
Likes: 0
Received 0 Likes
on
0 Posts
#6
Honda-Tech Member
Thread Starter
Join Date: May 2002
Location: California
Posts: 3,047
Likes: 0
Received 0 Likes
on
0 Posts
Trending Topics
#8
Honda-Tech Member
Thread Starter
Join Date: May 2002
Location: California
Posts: 3,047
Likes: 0
Received 0 Likes
on
0 Posts
#9
Honda-Tech Member
Thread Starter
Join Date: May 2002
Location: California
Posts: 3,047
Likes: 0
Received 0 Likes
on
0 Posts
Re: No spark after car warms up.
I'm sitting here "warming" up the car. It's running great, (of course) Lol
It now has a cell on. So I plugged in my reader and I'm not getting power to it. I tried my reader in another car and it works great.
So, I now have another question mark.
It now has a cell on. So I plugged in my reader and I'm not getting power to it. I tried my reader in another car and it works great.
So, I now have another question mark.
#11
Honda-Tech Member
Thread Starter
Join Date: May 2002
Location: California
Posts: 3,047
Likes: 0
Received 0 Likes
on
0 Posts
Re: 99 Civic HX - No spark after car warms up.
Ron, nice call on the fuse. Blown 43, scan tool worked.
Code:
P1259 (VTEC Malfunction)
P0118 (P0118 - Engine Coolant Temperature (ECT) sensor circuit high input
Yes, on the Multimeter.
I also found something interesting. I don't have fuel pressure when it dies. So, no spark, nor fuel when its warm.
After loosing fuel and P0118 popping up, I'm thinking it might be the ECT sensor.
Code:
P1259 (VTEC Malfunction)
P0118 (P0118 - Engine Coolant Temperature (ECT) sensor circuit high input
Yes, on the Multimeter.
I also found something interesting. I don't have fuel pressure when it dies. So, no spark, nor fuel when its warm.
After loosing fuel and P0118 popping up, I'm thinking it might be the ECT sensor.
#12
Re: 99 Civic HX - No spark after car warms up.
A bad ECT sensor should not cause a no-spark, no-fuel problem. In an attempt to rule this out, unplug the 2P connector for the ECT sensor forward and below the distributor and then run the engine or drive the car to check whether the engine no longer stalls.
Also reset the ECU to see whether either code returns.
(I am beginning to suspect bad ECU, but more tests are needed to support this possibility)
Also reset the ECU to see whether either code returns.
(I am beginning to suspect bad ECU, but more tests are needed to support this possibility)
#13
Honda-Tech Member
Thread Starter
Join Date: May 2002
Location: California
Posts: 3,047
Likes: 0
Received 0 Likes
on
0 Posts
Re: 99 Civic HX - No spark after car warms up.
A bad ECT sensor should not cause a no-spark, no-fuel problem. In an attempt to rule this out, unplug the 2P connector for the ECT sensor forward and below the distributor and then run the engine or drive the car to check whether the engine no longer stalls.
(I am beginning to suspect bad ECU, but more tests are needed to support this possibility)
(I am beginning to suspect bad ECU, but more tests are needed to support this possibility)
Ron, I'd also like to add I've been idling the car for a while. After it gets to temp the fan comes on. I go ahead shut the car off manually and it won't start. So it's interesting to know that I can shut it off while idling perfect and it won't start until cooling down.
#14
Re: 99 Civic HX - No spark after car warms up.
reset the ECU to see whether either code returns
1) Whether the Blk/Yel wire attached to the coil has battery voltage to body ground.
2) Unplug ECU connector A and test whether grounding pin A16 in the connector makes the fuel pump run.
#15
Honda-Tech Member
Thread Starter
Join Date: May 2002
Location: California
Posts: 3,047
Likes: 0
Received 0 Likes
on
0 Posts
Re: 99 Civic HX - No spark after car warms up.
Right now I have the car idling with the ECT sensor unplugged. Code P0118 came up instantly, but we expected that.
#16
Honda-Tech Member
Thread Starter
Join Date: May 2002
Location: California
Posts: 3,047
Likes: 0
Received 0 Likes
on
0 Posts
Re: 99 Civic HX - No spark after car warms up.
1) The Black yellow has 12v @ the ignition and distributor when the ignition is on and the car won't start.
2) Still working on this...
#17
Honda-Tech Member
Thread Starter
Join Date: May 2002
Location: California
Posts: 3,047
Likes: 0
Received 0 Likes
on
0 Posts
Re: 99 Civic HX - No spark after car warms up.
Figured it out. Took the main relay out and tapped on it. It made the car stuttered. Swapped it out for a new one and it fired right up.
Thank you Ron and everyone else!
Thank you Ron and everyone else!
Thread
Thread Starter
Forum
Replies
Last Post
sr20paisa
Honda CRX / EF Civic (1988 - 1991)
18
06-10-2016 05:35 PM