A couple Q?

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90nissan240sx
Posts: 41
Joined: Tue Jun 12, 2007 6:57 pm
Car: 90 Nissan 240sx

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I got a 90 240sx... I put in a 190lps walbro fuel pump and some venom python injectors. I got a check engine light for leaking injectors, anyway is there anyway i can run the pump and injectors without going back to stock? Adjustible fuel press. regulator?... (running hella rich...lol) Also, got a gear whine nosie in the rear end... looking to change it out, what do u think about a OBX pumkin? does anyone ride one or know someone who has? open to sugjestions... thanks, get out and slide dont hide


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driftingmy240sx
Posts: 322
Joined: Tue Nov 06, 2007 3:53 pm
Car: 1996 Nissan 240sx rb25det

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what size injectors do you have in the car? a fuel pressure reg will not help lean the mixture out correctly. lowering the fuel pressure will lean it out but if you turn the ressure down to low you ruin the spray pattern.

the obx rear? i have it in my 96 rb powered 240 and have not had any problems. the only thing is no one knows wht the really hp rating is on it. you can also swap a j30 rear with j30 axles into the car and have an oem lsd.

90nissan240sx
Posts: 41
Joined: Tue Jun 12, 2007 6:57 pm
Car: 90 Nissan 240sx

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I think i picked up the 550cc but not sure... But when i bought the car the check engine light was on, the code i pulled was leaking fuel injetors, so i bought the venoms and did nothing... I looked at an alldata sheet and there was a bunch of steps, and a hole bunch of stuff to check like O2 sensor, maf, coolent temp sensor... and a couple others. Replaced all the things that where not in spec. and ran a little better but light still on...?

I just dont want to spend hella money on a new set of oem injectors and still have the same prob.

Is the obx a stright drop in no need for fab? Yeah been looking for a j30 at the pick n pull, no luck...

90nissan240sx
Posts: 41
Joined: Tue Jun 12, 2007 6:57 pm
Car: 90 Nissan 240sx

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If car is running rich puffs black smoke out the tail pipe... check engine light for Leaking fuel injectors. check it out

ECT= Around 1 volt engine warm (blue/orange wire)check the o2 sensor wire, maybe grounded...MAF= (whight wire) check volts... spec. 0.8-1.5 black wire check volts, should be .03 or less.

confirm fix... MAF

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Outkast
Posts: 208
Joined: Fri Jul 07, 2006 3:45 pm
Car: 05 Titan 4WD CC, 00 Maxima SE 5spd, 91 TTZ
Location: Chattanooga, TN

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Did you put brand new O rings on each injector? If not that would probaly be your problem. If you used the old Orings, gas makes ruber expand and once you pull them out you'll never get them to seat right again.


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