KA24DE Engine Help Please - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

rocksteady_racer · 03-23-2010, 02:54 PM

Ok my ka24de was running perfect for the last 5 months. It just rained here in phila pretty hard last night (don't know if this is a consequence of that or just a coincidence). Anyway I took a 5 block drive over to my local convenience store and came home yesterday - ran perfect the whole way. Now today I started it up and it seems to be running on 3 cylinders or under massive retard. I checked by pulling the plugs - I pulled cylinder 1's spark plug boot and the engine stalled. I pulled cylinder 2's spark plug boot and it stalled again. I thought ok that's weird. 3's boot wouldn't come out for some reason and i didn't want to yank it too hard so it could be a problem there. I pulled cylinder 4 and it ran the same as it did with it in there. So I was like, I'll just swap the fuel injector in cylinder 4 hoping that would change something (I have 5 extras that I know work). Anyway so I swapped it and no change. Any ideas what would cause this. My battery is in the trunk and water is leaking onto the ground to the chassis so next thought is to try to dry it out and then grind it down and reattach and paint over if that might be the cause. I've never seen this engine do anything odd before that swapping fuel injectors didn't fix so I'm kinda lost. Doesn't seem like leakage because there is just black smoke from running rich coming out the back occasionally but not consistently. Maybe spark plugs - I'm going to try and pull them tomorrow to better diagnose the engine condition? Any other suggestions?

03-23-2010, 02:54 PM	#1
rocksteady_racer Zilvia Junkie Join Date: Oct 2005 Location: Phila Age: 39 Posts: 544 Trader Rating: (0) Feedback Score: 0 reviews	KA24DE Engine Help Please Ok my ka24de was running perfect for the last 5 months. It just rained here in phila pretty hard last night (don't know if this is a consequence of that or just a coincidence). Anyway I took a 5 block drive over to my local convenience store and came home yesterday - ran perfect the whole way. Now today I started it up and it seems to be running on 3 cylinders or under massive retard. I checked by pulling the plugs - I pulled cylinder 1's spark plug boot and the engine stalled. I pulled cylinder 2's spark plug boot and it stalled again. I thought ok that's weird. 3's boot wouldn't come out for some reason and i didn't want to yank it too hard so it could be a problem there. I pulled cylinder 4 and it ran the same as it did with it in there. So I was like, I'll just swap the fuel injector in cylinder 4 hoping that would change something (I have 5 extras that I know work). Anyway so I swapped it and no change. Any ideas what would cause this. My battery is in the trunk and water is leaking onto the ground to the chassis so next thought is to try to dry it out and then grind it down and reattach and paint over if that might be the cause. I've never seen this engine do anything odd before that swapping fuel injectors didn't fix so I'm kinda lost. Doesn't seem like leakage because there is just black smoke from running rich coming out the back occasionally but not consistently. Maybe spark plugs - I'm going to try and pull them tomorrow to better diagnose the engine condition? Any other suggestions?