Hondata

Hey guys i took my car for a test drive and after driving for a bit with no problems i stopped at a light idled for 20 seconds or so and then the car started knocking really bad while i was just stopped at the light. i towed the car back and tried a buddies kpro and same thing. sounds like a hard knock. Ive attached the dattalog from the whole trip i get to the stop light at 6:45 and after that is when the knocking occurs.

- 2004 Honda civic
- kmanager 3.24
- K20a engine, rbc manifold, hondata thermal intake gasket, ktuned tps, hybrid 70mm throttlebody, plm header
hondata itr map that comes with the program

What you are describing sounds more like rod knock and you should stop running the engine immedietely and have this checked out before further damage is done.

i also noticed the cam angle jumps to 107 degrees at 7:02 in the dattalog i just did a compression test cyl 1 has 0 compression and the rest have about 150ish.

Spunkster wrote:What you are describing sounds more like rod knock and you should stop running the engine immedietely and have this checked out before further damage is done.

i stopped running the engine immediately plugs are fine but i think it bent a valve on cyl 1 what would cause this based on the datatlog when im sitting there idling?

Impossible to say from a datalog. It will have to be taken apart and looked at by a professional.