Cylinder 2,3 misfire. Multiple error messages. 15k after lower engine replaced.

DmK

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An there is no manual for this car?

So havent driven the car since I got it from the dealer. This morning started it to see how it is doing. Noticable vibration and rough idle.

The problems I can think of:

1. Fuel injectors. This is what the dealer thought.
2. Carbon build up on intake valves.
3. Fuel pump.
4. Fuel filter.
5. Coolant leak via head gasket leak. ( The block was replaced 16k mi ago. They could have done a bad job and not mated the block to the head. )
6. ????

So here is my approach:

Inspect the coolant and oil and sparks for any other clues.

1. Try to clean the valves with spray into the intake. I saw a few videos of people doing this and it helps.

2. Replace the fuel injectors. (Need the manual on how to do this)

3. Cylinder compression test. (Dont know how to do)

I got some tools and a nice torque wrench. Here is hoping I get this fixed this weekend.

I might get delayed if I need to replace the fuel injectors since i dont have them nor any gaskets I might need to replace.

Anything else to consider guys?
Service Manual
https://www.civicx.com/forum/thread...-si-type-r-fc1-fc2-fc3-fc4-fk4-fk7-fk8.46297/
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BlownSI

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Funny just found that too. Thanks man, great stuff!
 
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BlownSI

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Bought an OBD2 sensor and some CRC intake valve and turbo cleaner. Runs better but after driving 2 days the codes came back for cylinder 2 and 3 misfire.

Will trouble shoot later this week, rexamine the sparks, coil packs, cylinder pressure, fuel pressure, air filter, and finally if need be get a fuel injectors and fuel filter.

I will keep you guys posted.
 

kshawn

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I resolved my missfiring issue today with new injectors
 

kshawn

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Did you do the job yourself? How hard was it if so?
I did. It wasn't bad actually.

Remove all the connections on the manifold, as well as hoses, for the hoses pick the easiest side to Disconnect from. Disconnect the 4 bolts on the throttle body. 3 bolts on top of the manifold, 2 on the bottom. Pull the manifold off. Remove the gard on the end of the fuel rail, 2 bolts. Unclip the injector wires. Disconnect fuel line to the rail, remove the rail bolts x2 for each injector. Pull the rail off, you do not need to Disconnect the rail pressure sensor on the end. You can then bring the rail up ontop of the motor to service the injectors.

Took me 4 hours and I didn't have jack to follow.
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