View Full Version : Maf help!
Lawrenceeeeee
08-05-2014, 04:36 PM
Little frustrated with my s14. Was drifting at a local event, hit a cone and it hit the clutch fan that took my wire harness out. It ripped the distributor,maf, electric fan, intake temp wires. I ended up changing out the harness. Opened the ecu and it had a burnt pin so I changed that too. Car is sparking but won't start. Getting code 12 from ecu. Checked the maf, its getting 13 volts or so constant power but nothing from the white signal wire. I believe its suppose yo have .8 v or so correct? It has 0. Does this signal come from or go to the maf? If it comes from it leads me to believe it's bad. If its going to I have a problem somewhere before my maf. Any help?
Driftwire
08-06-2014, 06:04 AM
Car would still start with the maf not hooked up.
Driftwire
08-06-2014, 06:05 AM
I would pull the fuel rail and make sure the injectors are firing. Also double check all the grounds. Sorry for 2 posts
Lawrenceeeeee
08-06-2014, 01:15 PM
Okay I'll give that a shot. My maf is also giving .8 v out of the 3 wires in the sleeve when its not running. Running its about .3 I don't know why it suddenly be can to get signal.
Lawrenceeeeee
08-07-2014, 01:02 AM
Okay, pulled the rail. Cranked the car and no gas comes out. I checked continuity and with key on 12v to each pin. I can't check pulse yet as I need someone to help me but, I believe I can hear the fuel pump priming. Very slightly hear a pump prime for a few seconds. Gonna keep diagnosing. Will check back
Lawrenceeeeee
08-07-2014, 09:22 PM
Right now I pulled the dizzy out. Had it all plugged up and turned the distributor by hand and the injectors click. If I turn it fast enough fuel sprays out of them. I'm led to believe they're not clicking when I'm cranking. Any one ever have an issue like this?
Lawrenceeeeee
08-07-2014, 11:59 PM
Still pretty stumped. Checked fuses all are good. Fuel pump is priming. The 2 grounds on engine are both good. I am getting spark just injectors aren't pulsing. Ecu is only showing code 55. If cas was bad would it throw a code?
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