problems with s13 sr20 blktop help !

[9dee-s13]

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

[[email protected]]

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

[9dee-s13]

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

[HellonFire]

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

Tyler

[[email protected]]

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]

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

[duffman1278]

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

[fliprayzin240sx]

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

[powersteeringless180sx]

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

[9dee-s13]

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

[HellonFire]

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

Tyler

[9dee-s13]

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

[i need tires]

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]

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

Tyler

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

Tyler

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

Cmon man. You have to work with us.

Tyler

[unicoladron]

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]

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]

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]

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

[9dee-s13]

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]

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