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Thread: Bluebird running lean

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Posts: 21-28 of 28
2010-01-06 02:28:28
#21
Originally Posted by David
I've come to the conclusion that its the way the gauges are wired, and that the fuel pump does need to have its own power and relay source with fresh wire. But better management is just a bandaid for the real issue.
Swap was from his 94 sentra SE-R... now he's in a 92 SE-R...

Once again basically only thing that has changed is in the electrical system.


I dont believe its a bandaid I think its doing things the proper way. Thats just me though
2010-01-06 03:07:30
#22
Shouldn't be that big a deal as long as the correct sensors, ecu, injector, combinations are used. Need to specify if it's the u13 or u12 bluebird as well iirc, doesn't one of them need the stepdown?? Just like b14>b13? And you should def. not be using the de bored maf unless you do some ecu tuning or safc tuning. You need to source a bluebird maf to match your ecu.
2010-01-06 07:14:31
#23
Originally Posted by nsusammyeb
Shouldn't be that big a deal as long as the correct sensors, ecu, injector, combinations are used. Need to specify if it's the u13 or u12 bluebird as well iirc, doesn't one of them need the stepdown?? Just like b14>b13? And you should def. not be using the de bored maf unless you do some ecu tuning or safc tuning. You need to source a bluebird maf to match your ecu.


Im using a u13 ecu paired with a b14 bored maf, finding a bluebird maf is damn near impossible btw.....
2010-01-06 14:37:03
#24
Same thing as a GTi-R MAF... which I have, and will soon be replacing with an N60 if you want to purchase it soon
2010-01-07 06:38:24
#25
Originally Posted by Nathan_Barstow
Same thing as a GTi-R MAF... which I have, and will soon be replacing with an N60 if you want to purchase it soon


sounds good. send me a pm when you have it off the car.
2010-01-10 07:12:49
#26
So i found a fuel leak...fixed it, didn't changed anything. I swapped back to a stock fpr that i know was working good....didn't change anything. i replaced my cap, rotor, o2 sensor....didn't change anything. So now i am waiting on my chipped ecu to show up this week from a buddy of mine that has been flashed for my set up. If that doesn't work then all there is left is to replace the maf....if that doesn't fix it then i do not know what..

Car is running rich at idle when ever it wants to, then lean at idle when ever it wants to. My exhaust back fires and pops alot when ever i let off the gas, and it still runs super lean under boost and has no power.
2010-01-10 08:33:10
#27
Originally Posted by morgans432
I would do as he said and get proper management if you want to have a healthy running car


Unless something is wrong the u12 should work well. Make sure your ecu matches your maf and inj. if that's all good then your maf must not b reading correct...
2010-01-10 09:11:19
#28
Originally Posted by cory
Unless something is wrong the u12 should work well. Make sure your ecu matches your maf and inj. if that's all good then your maf must not b reading correct...


im just playing the waiting game for the ecu to show up. :o

i even chatted with greg vogel and he agreed that its weird how the set-up i'm running was running fine in my other car but not in this car. I am tempted to wire back my b13 maf just to see if the lean issue stops so i can rule out the maf or not.
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