Bogging When low on gas?

Discuss topics related to the CA18DE and CA18DET series engines.
ca18detizzle
Posts: 273
Joined: Sat Aug 21, 2004 12:17 pm
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I don't get it. I checked for codes. Nothing. When I jump on it from 3k rpm car bogs and won't go past. This only happens when I have about alittle more then 1/4 tank. I wired to knock sensor up an all, checked for vacuum. Everything seems fine. Any ideas?

btw, ca18det 240sx.stock w/ walbro 255lph pumpFMIC

Could it be the fuel pressure reg?


boost_boy
Posts: 7051
Joined: Thu Nov 14, 2002 7:28 am
Car: B12 sentra w/built CA18DET, B12 sentra w/fully-built CA18DET, S13 coupe w/ CA18DET, S13 hatch w/CA18DET, 2002 maxima SE
Location: Miami, FL.
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ca18detizzle wrote:I don't get it. I checked for codes. Nothing. When I jump on it from 3k rpm car bogs and won't go past. This only happens when I have about alittle more then 1/4 tank. I wired to knock sensor up an all, checked for vacuum. Everything seems fine. Any ideas?

btw, ca18det 240sx.stock w/ walbro 255lph pumpFMIC

Could it be the fuel pressure reg?
Could be a faulty fuel sending unit that's telling you lies. Or maybe the sending unit got knocked outof calibration when you or if you've changed the pump. If the car runs pretty good with a full tank of gas, then there's your problem.

Dee

ca18detizzle
Posts: 273
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Thanks Dee! I appreciate your help. I bet my money it's that.

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RS12Turbo
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hmmmmm, I wonder if this is my prob........at 13-14psi at wot over 4k rpms or so with less than 1/4 tank of gas.......the engine acts like it hits fuel cut or boost cut or something. I've also got a walbro 255, and maybe it's not seated all the way in the bottom of the tank or something. I guess I'll fill the tank up, and see it it still does it.


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