Fuel issues...
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Posts: n/a
Fuel issues...
This apears to be random, and does it in any gear, and any boost level.
My car will pull timing out of nowhere in the higher rpm band, and the narrowband a/f gauge will go full lean. Im curious if my fuel pump might be going out? This even does it at 10psi. I don't understand it, friday it was dynoed at 12.2:1 a/f @ 13psi in the high rpm ranges... WTF?!
My car will pull timing out of nowhere in the higher rpm band, and the narrowband a/f gauge will go full lean. Im curious if my fuel pump might be going out? This even does it at 10psi. I don't understand it, friday it was dynoed at 12.2:1 a/f @ 13psi in the high rpm ranges... WTF?!
You'll need it!!!
Joined: Oct 2003
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Does the car idle fine? If so you might want to check for a leak in your IC piping. My car expierienced same symptoms until bad connector was located.
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Launch It Like It's Unbreakable!!!
Launch It Like It's Unbreakable!!!
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Joined: Mar 2002
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Originally posted by Cronic
The idle is OK, not perfect... it fluctuates sometimes.
The idle is OK, not perfect... it fluctuates sometimes.
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Jonas
2001 Nissan Maxima GLE FORSALE.
http://tampa.craigslist.org/pnl/cto/3952387467.html
For sale: tool cart, air tools, welding stuff, sata jet RP digital spray gun + more
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Jonas
2001 Nissan Maxima GLE FORSALE.
http://tampa.craigslist.org/pnl/cto/3952387467.html
For sale: tool cart, air tools, welding stuff, sata jet RP digital spray gun + more
http://tampa.craigslist.org/pnl/tls/3952277623.html
boostmonkey
Joined: Jun 2000
Posts: 14,791
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I would go ahead and rewire your fuel pump. It solved my issues. All I did was wire it directly to a relay (per Scott's instructions) and she was alive and well. Mine was making a sound that was indicitave of it cutting out. It just seemed like it wasn't getting enough voltage. 12 strong volts fixed that right up.
Do you have an aftermarket pump? It just seems like the wiring can't handle the amperage that the pump is capable of. Most of the DSM guys have to rewire their pumps as well...so give that a shot and see if it still does it.
Do you have an aftermarket pump? It just seems like the wiring can't handle the amperage that the pump is capable of. Most of the DSM guys have to rewire their pumps as well...so give that a shot and see if it still does it.
boostmonkey
Joined: Jun 2000
Posts: 14,791
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Wow, that means it is also pretty damn old to boot. Definately at least check the wires going to the pump with a decent voltage tester, upgrade the pump and change the fuel filter. If it doesn't fix the problem, it'll be alright since that would be 3 less things to go wrong in the near future.
