sr help... - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

crazybb · 05-30-2007, 01:50 AM

i need help.. i just upgraded my redtop sr with a sc50 turbo, walbro 255 fuel pump, n62 maf, 600cc fuel injectors, tial 38mm wastegate and 50mm blow off valve.. it idles great on start ups and runs like a champ.
the problem i am having is when i am driving it and im going above 30 mph or just got on it and i push in the clutch, the rpms drop and its dies unless i give it some gas.. i cant figure it out..
hope someone can help me...

Katsumbhong · 05-30-2007, 02:08 AM

clean out your MAF and make sure all the sensors are hooked up tight.

crazybb · 05-30-2007, 08:47 AM

i will try cleaning my maf today.. i hope that works... thanks katsumbhong

slider2828 · 05-30-2007, 10:36 AM

Check your plugs, see if any problems with ignition.

sleepy_s13 · 05-30-2007, 11:53 AM

dont get the maf sensor wet with anything they get messed up really easy.

s13silvia123 · 05-30-2007, 12:55 PM

its the maf sensor i'm having the same problem rite now too. just correct the wiring. and whatever EMS you have. have it caliberate with the n62 maf.

crazybb · 05-30-2007, 09:06 PM

ok..i got some maf cleaner i will clean it tomorrow.. i have me ecu tune by enthalpy.. i have a n62 maf, the plug i have suppose to be color code to hook up to my harness..

slider2828 · 05-31-2007, 04:47 PM

Check it anyways, I did a write or diagram for the exact wires for hte MAFS. go search for it. Just to amke sure

crazybb · 05-31-2007, 09:10 PM

i guess i will check the wiring.. i cleaned out the maf today and it does the same thing.. going to check the plugs this weekend to see how they look like. any other ideas??

*fliprayzin240sx* · 05-31-2007, 11:06 PM

Does it bog when you come to a stop? If it does, could be the bov releasing too fast for the ECU to recover. Try recirculating it.

crazybb · 05-31-2007, 11:54 PM

i dont think you can recirculate a tial.. i could be wrong though... i hope i get it fix soon.. was going to go to the track, but i want to fix this problem first..

180sxLove · 06-01-2007, 05:37 AM

I used to run a 50mm on my SR with a similar setup.. Car would run hard, but if I let go of that clutch in neutral and let the rpm fall, the car would stumble and die out. You would have to baby it until it idled.

I switched my BOV to a Greddy Type S and recirculated it and its never idled better.

Unless you can't rev your car over 3500 RPM then its not your MAF.

crazybb · 06-01-2007, 07:33 AM

man.. i hope i can get it to work with my tial.. i love it and i got a great deal on it

05-30-2007, 01:50 AM	#1
crazybb Zilvia Member Join Date: Mar 2006 Location: fort smith, ar Posts: 288 Trader Rating: (1) Feedback Score: 1 reviews	sr help... i need help.. i just upgraded my redtop sr with a sc50 turbo, walbro 255 fuel pump, n62 maf, 600cc fuel injectors, tial 38mm wastegate and 50mm blow off valve.. it idles great on start ups and runs like a champ. the problem i am having is when i am driving it and im going above 30 mph or just got on it and i push in the clutch, the rpms drop and its dies unless i give it some gas.. i cant figure it out.. hope someone can help me...

05-30-2007, 11:53 AM	#5
sleepy_s13 Zilvia Junkie Join Date: May 2006 Location: West Covina Age: 38 Posts: 569 Trader Rating: (1) Feedback Score: 1 reviews	dont get the maf sensor wet with anything they get messed up really easy. __________________ $K:\pics\Cars\new sig bridge copy.jpg$

05-30-2007, 12:55 PM	#6
s13silvia123 Post Whore! Join Date: May 2006 Location: where waldo is Age: 43 Posts: 3,267 Trader Rating: (16) Feedback Score: 16 reviews	its the maf sensor i'm having the same problem rite now too. just correct the wiring. and whatever EMS you have. have it caliberate with the n62 maf. __________________ 18g and 20g turbo users click on me http://zilvia.net/f/tech-talk/261219-18g-20g-turbo-users.html

05-31-2007, 11:06 PM	#10
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	Does it bog when you come to a stop? If it does, could be the bov releasing too fast for the ECU to recover. Try recirculating it. __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

05-30-2007, 02:08 AM	#2
Katsumbhong Zilvia Junkie Join Date: Aug 2006 Location: San Diego, California Age: 39 Posts: 454 Trader Rating: (2) Feedback Score: 2 reviews	clean out your MAF and make sure all the sensors are hooked up tight.

05-30-2007, 08:47 AM	#3
crazybb Zilvia Member Join Date: Mar 2006 Location: fort smith, ar Posts: 288 Trader Rating: (1) Feedback Score: 1 reviews	i will try cleaning my maf today.. i hope that works... thanks katsumbhong

05-30-2007, 10:36 AM	#4
slider2828 Post Whore! Join Date: Oct 2004 Location: San Francisco, CA Posts: 6,040 Trader Rating: (13) Feedback Score: 13 reviews	Check your plugs, see if any problems with ignition.

05-30-2007, 09:06 PM	#7
crazybb Zilvia Member Join Date: Mar 2006 Location: fort smith, ar Posts: 288 Trader Rating: (1) Feedback Score: 1 reviews	ok..i got some maf cleaner i will clean it tomorrow.. i have me ecu tune by enthalpy.. i have a n62 maf, the plug i have suppose to be color code to hook up to my harness..

05-31-2007, 04:47 PM	#8
slider2828 Post Whore! Join Date: Oct 2004 Location: San Francisco, CA Posts: 6,040 Trader Rating: (13) Feedback Score: 13 reviews	Check it anyways, I did a write or diagram for the exact wires for hte MAFS. go search for it. Just to amke sure

05-31-2007, 09:10 PM	#9
crazybb Zilvia Member Join Date: Mar 2006 Location: fort smith, ar Posts: 288 Trader Rating: (1) Feedback Score: 1 reviews	i guess i will check the wiring.. i cleaned out the maf today and it does the same thing.. going to check the plugs this weekend to see how they look like. any other ideas??

05-31-2007, 11:54 PM	#11
crazybb Zilvia Member Join Date: Mar 2006 Location: fort smith, ar Posts: 288 Trader Rating: (1) Feedback Score: 1 reviews	i dont think you can recirculate a tial.. i could be wrong though... i hope i get it fix soon.. was going to go to the track, but i want to fix this problem first..

06-01-2007, 05:37 AM	#12
180sxLove Leaky Injector Join Date: Mar 2007 Location: Eugene, OR Age: 38 Posts: 141 Trader Rating: (0) Feedback Score: 0 reviews	I used to run a 50mm on my SR with a similar setup.. Car would run hard, but if I let go of that clutch in neutral and let the rpm fall, the car would stumble and die out. You would have to baby it until it idled. I switched my BOV to a Greddy Type S and recirculated it and its never idled better. Unless you can't rev your car over 3500 RPM then its not your MAF.

06-01-2007, 07:33 AM	#13
crazybb Zilvia Member Join Date: Mar 2006 Location: fort smith, ar Posts: 288 Trader Rating: (1) Feedback Score: 1 reviews	man.. i hope i can get it to work with my tial.. i love it and i got a great deal on it