Troubleshooting: B18 Running lean at higher RPM
04-29-2018, 07:00 AM
#1
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Troubleshooting: B18 Running lean at higher RPM
At idle it was running really rich and now that im fully warmed up and drove a little its at 14.5 at idle. if i accelerate it will lean out to about 14-15 and as i cruise if im easy on the gas itll be around 12 or so. but the more i accelerate it leans out more. I put a screwdriver to my injecotrs and i hear them all ticking so i dont believe i have a failiing fuel injector but i noticed at idle my fuel pressure is at 43 and will increase to about 46 but it looks like it drops to maybe 40 or so at higher rpms. I did put my fuel pump from my d16 in at one point but never drove like that. i ddi run the car a little but had issues that i realized was from the different fuel pump. the origional one is back in now so its better than the d series one but still i feel the loss of power. around 7k rpm it hesitated after hitting vtec. it really only did it at very high rpms though. is there a way to see if my injectors are clogged maybe or does it sound more like a fuel pump problem?
04-29-2018, 10:46 AM
#2
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re: Troubleshooting: B18 Running lean at higher RPM
This a quick video I took of how my gauge looks. It starts off rich but leans out as I continue on the gas
04-29-2018, 01:00 PM
#4
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re: Troubleshooting: B18 Running lean at higher RPM
Do you think if I add fuel that will help? I have hondata idk if that’s something I could just do myself
05-01-2018, 06:30 AM
#7
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re: Troubleshooting: B18 Running lean at higher RPM
Alright so quick update. I found I’m actually leaking out my headers right off the head. It seems to be in the middle and no matter how many times I reset my headers it continues to leak. I snapped a bolt but I think I’ll be able to get it out it’s sticking out a little bit so I’m gonna try vice griping it, but also I have a couple gaskets. I got a felpro all metal one I picked up and I also got 2 of the thicker softer ones. I’m considering trying to double up on the gasket with maybe a metal against he head and then the softer one between the headers and the metal ones. Any suggestions?
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05-01-2018, 06:41 AM
#8
Re: B18 Running lean at higher RPM
Alright so quick update. I found I’m actually leaking out my headers right off the head. It seems to be in the middle and no matter how many times I reset my headers it continues to leak. I snapped a bolt but I think I’ll be able to get it out it’s sticking out a little bit so I’m gonna try vice griping it, but also I have a couple gaskets. I got a felpro all metal one I picked up and I also got 2 of the thicker softer ones. I’m considering trying to double up on the gasket with maybe a metal against he head and then the softer one between the headers and the metal ones. Any suggestions?
05-01-2018, 07:53 AM
#9
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Re: Troubleshooting: B18 Running lean at higher RPM
So I saw the headers have some of the old gasket on there that’s what was causing the leak. Now my issue is the snapped bolt though 😩 it’s the very center one towards he bottom and it sticks out a tiny bit. I’m trying to vice grip it but my grips won’t hold it. I’m seriously contemplating if the headers will hold without it and I just torque to spec in sequence but I don’t really wanna do that or even drive much with that bolt like it is I wanna get it out asap
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runnin lean and rough during idle sometimes, lean idle on the tune or fuel pump no gettin enough pow
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