help SR injectors no pulse. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

lazymofo · 02-26-2007, 09:47 PM

i got a s13 with a Sr blacktop.. i got the car running with a E MAFS. i was planning to drop a Z32 MAFS, which i did. after i spliced up the wires then turn the motor over, it idled about for a min. then it spubders then die. it wont turned back on again., i redid the harness. then still got nothing... check spark, good. check fuel presure, good. then i looked at the pulse. consant power no pulse.. whats going on here. i think i fucked up the wiring for the Z32 MAFS, then it causes a sensor to went out.

please help

stan

mRclARK1 · 02-26-2007, 10:53 PM

If you think you messed up on the wiring for MAFS why not start with fixing that.

Could be your ignitor chip is fried.

lazymofo · 02-26-2007, 10:59 PM

Quote:

Originally Posted by mRclARK1

If you think you messed up on the wiring for MAFS why not start with fixing that.

Could be your ignitor chip is fried.

its really weird... its my firends car, the person who worked on the harness had worked on shit b4. i cleaned up the harness. redoing the whole harness. i drop the old E MAFS back on still doesnt work.. but why would the ignitor chip had anything to do with the injectors' pulse... i mean i got power to them. theres just no analog signal.

mRclARK1 · 02-26-2007, 11:04 PM

Never mind what I said about the ignitor chip.. for some reason I read "coilpacks" instead of "injectors" when I read your original post.

I'm obviously more tired than I thought.

drftwerks · 02-26-2007, 11:36 PM

cam angle sensor, or crank, sheck those out

drftwerks · 02-26-2007, 11:40 PM

the ecu should be pulsing the injectors on and off,

and get the signal to start firing the injectors from crank angle sensor.

check those, let us know what fixes them

lazymofo · 02-27-2007, 07:10 AM

Quote:

Originally Posted by drftwerks

the ecu should be pulsing the injectors on and off,

and get the signal to start firing the injectors from crank angle sensor.

check those, let us know what fixes them

no problemo, ill do that asap

lazymofo · 02-28-2007, 02:19 AM

any more ideas?

johngriff · 02-28-2007, 02:35 AM

Smell your ecu, check for the on light. Check the ground wire of the maf harness.

Umm... what are you using to convert the maf with btw? Can I get an explanation of modifications?

lazymofo · 03-05-2007, 07:32 AM

Quote:

Originally Posted by johngriff

Smell your ecu, check for the on light. Check the ground wire of the maf harness.

Umm... what are you using to convert the maf with btw? Can I get an explanation of modifications?

i used www.cameltoed.com i got slight confused by the mafs harness plug.

02-26-2007, 09:47 PM	#1
lazymofo Leaky Injector Join Date: Dec 2005 Location: Hustle town Posts: 115 Trader Rating: (1) Feedback Score: 1 reviews	help SR injectors no pulse. i got a s13 with a Sr blacktop.. i got the car running with a E MAFS. i was planning to drop a Z32 MAFS, which i did. after i spliced up the wires then turn the motor over, it idled about for a min. then it spubders then die. it wont turned back on again., i redid the harness. then still got nothing... check spark, good. check fuel presure, good. then i looked at the pulse. consant power no pulse.. whats going on here. i think i fucked up the wiring for the Z32 MAFS, then it causes a sensor to went out. please help stan

02-26-2007, 10:53 PM	#2
mRclARK1 Post Whore! Join Date: Sep 2005 Location: Location? Posts: 4,205 Trader Rating: (0) Feedback Score: 0 reviews	If you think you messed up on the wiring for MAFS why not start with fixing that. Could be your ignitor chip is fried. __________________

02-26-2007, 11:04 PM	#4
mRclARK1 Post Whore! Join Date: Sep 2005 Location: Location? Posts: 4,205 Trader Rating: (0) Feedback Score: 0 reviews	Never mind what I said about the ignitor chip.. for some reason I read "coilpacks" instead of "injectors" when I read your original post. I'm obviously more tired than I thought. __________________

02-26-2007, 11:36 PM	#5
drftwerks Nissanaholic! Join Date: Mar 2004 Location: california Posts: 2,343 Trader Rating: (1) Feedback Score: 1 reviews	cam angle sensor, or crank, sheck those out __________________ giantroboteyes.wordpress.com/

02-26-2007, 11:40 PM	#6
drftwerks Nissanaholic! Join Date: Mar 2004 Location: california Posts: 2,343 Trader Rating: (1) Feedback Score: 1 reviews	the ecu should be pulsing the injectors on and off, and get the signal to start firing the injectors from crank angle sensor. check those, let us know what fixes them __________________ giantroboteyes.wordpress.com/

02-28-2007, 02:19 AM	#8
lazymofo Leaky Injector Join Date: Dec 2005 Location: Hustle town Posts: 115 Trader Rating: (1) Feedback Score: 1 reviews	any more ideas?

02-28-2007, 02:35 AM	#9
johngriff Post Whore! Join Date: Jun 2004 Location: Long Beach, CA Posts: 4,103 Trader Rating: (4) Rides Gallery: johngriff Feedback Score: 4 reviews	Smell your ecu, check for the on light. Check the ground wire of the maf harness. Umm... what are you using to convert the maf with btw? Can I get an explanation of modifications? __________________ [email protected]