problems with s13 sr20 blktop help ! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

9dee-s13 · 02-05-2008, 07:00 PM

i just finish up my swap. it start but will not pass over 3500 rpm with out my MAF pluged in, but when it is pluged in it will not pass over 2500 rpm then it slowly dies out. can anyone help me out or tell me what to check. could it be a bad maf? any help will be appreciated
thanks guys

lob@ller · 02-05-2008, 07:05 PM

Sounds like you figured it out already! Did you check the ecu for codes yet?

9dee-s13 · 02-05-2008, 07:11 PM

no. i dont know how to ck it. do you knoe any sites that show you how to do it ?

HellonFire · 02-05-2008, 07:16 PM

Swap maf. You can use a SOHC one if you have one laying around.

Tyler

lob@ller · 02-05-2008, 07:34 PM

Turn key to "On"

locate the tiny screw on the backside of your ECU

Turn it clockwise fully for 3 seconds

Turn it counterclockwise fully and see the LED next to the screw blink.

Count and determine codes (55 = all good)

Turn it clockwise fully for 3 seconds then counterclockwise fully to rest.

Fix accordingly.

9dee-s13 · 02-06-2008, 12:54 PM

if there is no check light engine can you still check for codes ?

duffman1278 · 02-06-2008, 02:15 PM

Yup. Try swappin out the MAF though, it seems to be the problem.

*fliprayzin240sx* · 02-06-2008, 07:51 PM

Check the wiring too on your maf since you had to extend it out...

powersteeringless180sx · 02-07-2008, 12:35 PM

yea change out your MAF. i've got a stock sr maf for sale if you need it.

9dee-s13 · 02-07-2008, 01:20 PM

i swap out the sr20 maf to my stock ka and it still did the samething.

HellonFire · 02-07-2008, 01:56 PM

Did you change it to a SOHC or DOHC maf? Only SOHC works.

Tyler

9dee-s13 · 02-07-2008, 02:21 PM

i put in the dohc ka maf. oh foreal its not gonna work. darn

i need tires · 02-07-2008, 03:55 PM

Quote:

Originally Posted by 9dee-s13

i put in the dohc ka maf. oh foreal its not gonna work. darn

wow yea.. get a SOHC maf.. or just a SR maf

HellonFire · 02-07-2008, 04:14 PM

Quote:

Originally Posted by HellonFire

Swap maf. You can use a SOHC one if you have one laying around.

Tyler

Quote:

Originally Posted by HellonFire

Did you change it to a SOHC or DOHC maf? Only SOHC works.

Tyler

Quote:

Originally Posted by 9dee-s13

i put in the dohc ka maf. oh foreal its not gonna work. darn

Cmon man. You have to work with us.

Tyler

unicoladron · 02-07-2008, 06:35 PM

Quote:

Originally Posted by 9dee-s13

if there is no check light engine can you still check for codes ?

don't worry about the check engine light...check the led ON the ECU itself.

again, the ECU itself has an LED built into it for this purpose.

Pepperoni · 02-08-2008, 12:52 AM

Quote:

Originally Posted by unicoladron

check the led ON the ECU itself.

True, although I wish the OP gave us more information; he didn't state what s13 blacktop ECU he has. If he has a J4 ECU, it doesn't have an LED. If that's the case then easiest way (for me) was to wire up the consult port and check codes on my laptop... much easier.

*njd07* · 02-08-2008, 05:08 AM

get a voltmeter and check the voltages, one is signal volatge, one is power and one is ground. you can use paper clips to tap into the plug. dunno if your skilled enough for this...but thats how I checked my maf when I had a problem..ended up being my ground wire.

smelly240 · 02-08-2008, 05:23 AM

are you sure u did th emaf wiring correct? the ecu didnt make smelly time or anything right?

9dee-s13 · 02-09-2008, 03:21 PM

i have the e5 ecu. the j4 ecu doesnt work for some reason. led lights you mean the redlight inside the ecu right ? i havent found a sohc maf yet but still searching around. the e5 ecu doesnt have the redlight. i guess led you mean. and yeah the maf wiring is correct only 3 wires. white, black, and black with white strip

9dee-s13 · 02-13-2008, 03:18 PM

thanks man for the advices. car is up n running.

02-05-2008, 07:00 PM	#1
9dee-s13 Join Date: Jan 2004 Location: north carolina Posts: 17 Trader Rating: (0) Feedback Score: 0 reviews	problems with s13 sr20 blktop help ! i just finish up my swap. it start but will not pass over 3500 rpm with out my MAF pluged in, but when it is pluged in it will not pass over 2500 rpm then it slowly dies out. can anyone help me out or tell me what to check. could it be a bad maf? any help will be appreciated thanks guys

02-05-2008, 07:05 PM	#2
lob@ller Leaky Injector Join Date: Jan 2008 Location: Jerzee Posts: 143 Trader Rating: (0) Feedback Score: 0 reviews	Sounds like you figured it out already! Did you check the ecu for codes yet? __________________

02-05-2008, 07:34 PM	#5
lob@ller Leaky Injector Join Date: Jan 2008 Location: Jerzee Posts: 143 Trader Rating: (0) Feedback Score: 0 reviews	Turn key to "On" locate the tiny screw on the backside of your ECU Turn it clockwise fully for 3 seconds Turn it counterclockwise fully and see the LED next to the screw blink. Count and determine codes (55 = all good) Turn it clockwise fully for 3 seconds then counterclockwise fully to rest. Fix accordingly. __________________

02-06-2008, 07:51 PM	#8
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	Check the wiring too on your maf since you had to extend it out... __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

02-08-2008, 05:08 AM	#17
njd07 Premium Member Join Date: Jan 2004 Location: canada Age: 39 Posts: 644 Trader Rating: (14) Feedback Score: 14 reviews	get a voltmeter and check the voltages, one is signal volatge, one is power and one is ground. you can use paper clips to tap into the plug. dunno if your skilled enough for this...but thats how I checked my maf when I had a problem..ended up being my ground wire. __________________ s13 parts fs:http://www.zilvia.net/f/showthread.php?t=193416 sr parts fs: http://www.zilvia.net/f/showthread.php?t=193399 s14 parts fs:http://www.zilvia.net/f/showthread.php?t=193420 180sx part out http://zilvia.net/f/showthread.php?t=203711

02-05-2008, 07:11 PM	#3
9dee-s13 Join Date: Jan 2004 Location: north carolina Posts: 17 Trader Rating: (0) Feedback Score: 0 reviews	no. i dont know how to ck it. do you knoe any sites that show you how to do it ?

02-05-2008, 07:16 PM	#4
HellonFire Zilvia Addict Join Date: Jan 2004 Location: Georgia Age: 39 Posts: 740 Trader Rating: (1) Feedback Score: 1 reviews	Swap maf. You can use a SOHC one if you have one laying around. Tyler

02-06-2008, 12:54 PM	#6
9dee-s13 Join Date: Jan 2004 Location: north carolina Posts: 17 Trader Rating: (0) Feedback Score: 0 reviews	if there is no check light engine can you still check for codes ?

02-06-2008, 02:15 PM	#7
duffman1278 Post Whore! Join Date: Apr 2007 Location: Covina Age: 37 Posts: 2,844 Trader Rating: (8) Rides Gallery: duffman1278 Feedback Score: 8 reviews	Yup. Try swappin out the MAF though, it seems to be the problem.

02-07-2008, 12:35 PM	#9
powersteeringless180sx Zilvia Addict Join Date: Mar 2006 Location: SoCal (Orange County) Age: 43 Posts: 868 Trader Rating: (1) Feedback Score: 1 reviews	yea change out your MAF. i've got a stock sr maf for sale if you need it.

02-07-2008, 01:20 PM	#10
9dee-s13 Join Date: Jan 2004 Location: north carolina Posts: 17 Trader Rating: (0) Feedback Score: 0 reviews	i swap out the sr20 maf to my stock ka and it still did the samething.

02-07-2008, 01:56 PM	#11
HellonFire Zilvia Addict Join Date: Jan 2004 Location: Georgia Age: 39 Posts: 740 Trader Rating: (1) Feedback Score: 1 reviews	Did you change it to a SOHC or DOHC maf? Only SOHC works. Tyler

02-07-2008, 02:21 PM	#12
9dee-s13 Join Date: Jan 2004 Location: north carolina Posts: 17 Trader Rating: (0) Feedback Score: 0 reviews	i put in the dohc ka maf. oh foreal its not gonna work. darn

02-08-2008, 05:23 AM	#18
smelly240 Nissanaholic! Join Date: Oct 2006 Location: Philaburbia Age: 47 Posts: 2,137 Trader Rating: (4) Feedback Score: 4 reviews	are you sure u did th emaf wiring correct? the ecu didnt make smelly time or anything right? __________________ HREs on a S13 - check, 6262 - check, Girlfriend.... - nope

02-09-2008, 03:21 PM	#19
9dee-s13 Join Date: Jan 2004 Location: north carolina Posts: 17 Trader Rating: (0) Feedback Score: 0 reviews	i have the e5 ecu. the j4 ecu doesnt work for some reason. led lights you mean the redlight inside the ecu right ? i havent found a sohc maf yet but still searching around. the e5 ecu doesnt have the redlight. i guess led you mean. and yeah the maf wiring is correct only 3 wires. white, black, and black with white strip

02-13-2008, 03:18 PM	#20
9dee-s13 Join Date: Jan 2004 Location: north carolina Posts: 17 Trader Rating: (0) Feedback Score: 0 reviews	thanks man for the advices. car is up n running.