Originally Posted by Boris
(Post 1114613)
A grounded out spark plug will tell you if you have fire.
Pull out all the plugs, disconnect your coils and turn on your fuel pump. When you crank, do you a see any extra fuel or a mist of fuel coming out of the affected cylinder ?
Originally Posted by Oscar
(Post 1114614)
Finger on coil and output test mode :idea:
Originally Posted by Reverant
(Post 1114605)
Injectors 1 and 3 share the same driver on a 1.6L. The same goes for 2 and 4.
So if this was an injector driver inside the ECU, two cylinders would be affected at the same time. Thanks for the help, all. |
Originally Posted by hustler
(Post 1114624)
Do I need to do this if I hear them opening? I did the test with the fuel pump off.
. Had a fuel pressure regulator go bad once and all the extra pressure would blow right by the weakest injector putting out the flame. |
Have you converted to sequential fuel?
If so, have you performed the test I described (replace all 4 injectors with light bulbs, test each driver/"injector" using the output test mode. Do you still have the stock 90-93 coils? |
Originally Posted by Reverant
(Post 1114633)
Have you converted to sequential fuel?
Originally Posted by Reverant
(Post 1114633)
If so, have you performed the test I described (replace all 4 injectors with light bulbs, test each driver/"injector" using the output test mode.
Originally Posted by Reverant
(Post 1114633)
Do you still have the stock 90-93 coils?
|
Is this what I want? I'm not sure which plugs into the EV14 from the pictures and searching is failing me.
Kent-Moore J-44603 Noid Light (Bosch 2) (J44603) |
Wow, such expensive. doge_face.jpg
Ok get just one to test each driver individually, and if need be, get more. |
Originally Posted by Reverant
(Post 1114648)
Wow, such expensive. doge_face.jpg
Ok get just one to test each driver individually, and if need be, get more. |
Try swapping the injector with another cylinder to see if the problem follows that specific injector or that injector output.
|
Why are you guys focusing on fuel and not the coils? Serious question. The injectors seemed to work normally, audibly in test mode, the coil clearly did not in test mode.
|
Do you have a cheapo HF compression gauge?
|
Originally Posted by curly
(Post 1114921)
Do you have a cheapo HF compression gauge?
|
You said it is getting spark. My assumption is if spark is functioning correctly, you're dumping in too much fuel. Even if you can "hear the injectors" who is to say the injector is coming completely closed/getting hung open?
Swapping bad cylinder injector with another and having the problem on the same cylinder would immediately rule the whole fuel thing out. Then you can say without a doubt it's a spark problem. Or your engine is blown. |
It's you...so yeah
|
Originally Posted by hustler
(Post 1114940)
One coil lead reads half the voltage of the other and you think the engine is blown up?
|
Originally Posted by Oscar
(Post 1115065)
Then swap coils? If shipping back and fro' weren't a pain in the dick I'd lend you my set of VVT coils.
|
So, wiring before the coils. Pinched wire, bad solder/crimp joint, faulty connector.
|
Originally Posted by hustler
(Post 1115084)
The wires going to the coil read 2 and 5v, so swapping the coils won't matter, and I"ve already swapped them around with my spares.
|
I can clean and flow your injectors for you if need be.
|
Originally Posted by Oscar
(Post 1115118)
Now I get it. Time to break out the DMM.
|
I used a spark-plug light to determine that each coil is at least activating the light.
So today I used the multi-meter to determine that each injector is firing in test mode with similar voltage numbers. (The light I bought won't work, so I might have to buy another.) Injector A is the only injector that made a mist of fuel shoot out the spark-plug hole when using test mode, the rest did not but they are clearing squirting fuel. Time to rewire and replace injectors? |
All times are GMT -4. The time now is 04:39 PM. |
© 2024 MH Sub I, LLC dba Internet Brands