I've got an odd one for you...
#1
Boost Czar
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I've got an odd one for you...
I narrowed my oil consumption down to a leak at the drain line. So I pulled the turbo off and modified a few things.
I put all back together and tried to start it up. Turned over right away, idled for a few seconds....now the odd part.
It gradually started losing vacuum untill it died. Tried again same thing. Questioned the AFM and put it in Diagnostics mode (Gnd & 10) to no avail. Holding the throttle open just ever so slightly keeps it running. Then I noticed on the WB that it's running super lean while this is happening before it cuts out. Also tried keeping the fuel pump running (Gnd & F/P) to no avail.
Not sure what the problem is...on top of that I made the oil leak worse.
I put all back together and tried to start it up. Turned over right away, idled for a few seconds....now the odd part.
It gradually started losing vacuum untill it died. Tried again same thing. Questioned the AFM and put it in Diagnostics mode (Gnd & 10) to no avail. Holding the throttle open just ever so slightly keeps it running. Then I noticed on the WB that it's running super lean while this is happening before it cuts out. Also tried keeping the fuel pump running (Gnd & F/P) to no avail.
Not sure what the problem is...on top of that I made the oil leak worse.
#5
i dont think it would unless you have a blown cylinder or sticking valve not letting the oil drain properly so it has to go somewhere. I have had my fp relay stick before and not let the pump come on you might pull the battery cable to reset everything and check the relay and fuse if all this doesnt work i would cut the wires to the afm and wire it together for constant on if this works you can keep it like that or put a new afm in place.
#6
Boost Czar
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I know I'm getting fuel pressure, If I clamp down on the return it reacts like it would normally, i can hear it build pressure. I can try swapping the AFM, but it just seems really weird.
It was running perfectly fine yesterday, I pulled the intake as a whole, unbolted the downpipe, removed the oil lines, and pulled the turbo. I didn't touch anything else. And went over my work like 20 times trying to figure it out.
It was running perfectly fine yesterday, I pulled the intake as a whole, unbolted the downpipe, removed the oil lines, and pulled the turbo. I didn't touch anything else. And went over my work like 20 times trying to figure it out.
#11
Boost Czar
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yeah i can try that, but its hard to keep it running and spary **** at the same time....i went through all my vacuum lines, and none are disconnected, ran compressed air into a few to listen for leaks but couldn't hear any. I still think it may just be a AFM issue.
#14
Boost Czar
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you're telling me...I've taken the turbo off at least 10-15 times now and this has never occured. It's the OEM AFM currently. I'm going to swap the RX7 one back on just to see how it reacts. I mean unless I somehow punctured the coupler off the turbo outlet I don't see what I could have done to it.
#16
Boost Czar
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Yeah I dunno, from prior forgetfulness I've noticed the car won't crank over at all without the AFM. But a swap with another unit will be able to narrow that one down really fast.
Going to try disconnecting the o2 sensor incase I did somethign with that signal.
It wasn't throwing a code, but I'll try to pull any stored ones to see if that doesn't point me in the right direction.
Otherwise if that results in no change I'm going to rip the turbo out again and try again after I fix the oil leak...again.
Going to try disconnecting the o2 sensor incase I did somethign with that signal.
It wasn't throwing a code, but I'll try to pull any stored ones to see if that doesn't point me in the right direction.
Otherwise if that results in no change I'm going to rip the turbo out again and try again after I fix the oil leak...again.
#17
Don't worry about the O2 sensor. On a cold engine it does absolutely nothing. NB sensors need to get up to 600* F before they create a signal, so they are not looked at until the engine is warmed up.
To check the AFM, look for varying resistance between the blk-light green and red-green wires going into the AFM as you move the flapper door.
To check the AFM, look for varying resistance between the blk-light green and red-green wires going into the AFM as you move the flapper door.