Any Honda Techs? How are my cylinders numbered?

[haryv]

p0300- misfire all cylinders
p0301- cyl 1 misfire
p0302- cyl 2 misfire
p0303- cyl 3 misfire
p0304- cyl 4 misfire

Take a look at the EGR which if hanging from carbnon around it causing it to stick slightly open.

Also, do a compression check on cylinders 3 and 4 and compare them with the rest. Without scanner "not a code reader" it will be difficult to troubelshoot.

In the image is scope reading of a bad coil on a honda with the 1.7 engine.

-also, check for intake leaks between 3 and four. Does the light flash when the engine is cold and you excelerate, or flash when the engine is hot and you excelerate? Or does it do it all the time? Best to get a smoker and check for vacume leaks, and that compression check will possibly check for leaking head gasket. Check oil for antifreeze and antifreeze for oil. Have you been loosing antifreeze and toping it off?

 

[nota944mechanic]

I used to be an Acura tech. It's been nearly ten yrs since I popped the hood on one, but I seem to recall an issue with the coil pack control modules from time to time. When there are multiple cylinder misfires and swapping coils got us nowhere, this where we started.

Someone mentioned the EGR valve. This was also a common issue. Customers would come in thinking the auto trans was acting up because the vehicle would shudder sometimes while accelerating. Without the Honda Tablet, the best way to reproduce this is to accelerate from a stop as slowly as possibly, applying very, very little throttle. It should start shuddering by 25mph. Most of the time the EGR sensor did not trigger a CEL.

Hope this helps.