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View Full Version : help SR injectors no pulse.

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
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. :wiggle:
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
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
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.