Sr20det afm problems! Help - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

norcaldriftin · 10-17-2012, 11:14 AM

So last week I started my sr20det after fixing a few boost leaks.
It started to idle really bad and blow black smoke. The weird thing is that if I unplug my MAF and plug it in again it will go back to a fine idle. It seems I need to do this every time I start the car from cold. Also if I touch the wiring to the MAF it will change how it's idling. The wiring has two different joiners done professionally but too many wire splices could be the problem? Or bad maf? Help me out I'm stumped!

norcaldriftin · 10-17-2012, 04:38 PM

Ok so I solved the problem if people want to know what it was. The two bolts that hold the fuel rail down(one was missing and one was loose) so if anyone has a really shitty idle. That could be your problem!

illwill659 · 11-01-2012, 09:16 PM

Thanks for the post I am having a similar problem except i believe that it is my MAF sensor. If i figure something new I will post it.

10-17-2012, 11:14 AM	#1
norcaldriftin Zilvia Member Join Date: Sep 2012 Location: Chico CA Age: 30 Posts: 220 Trader Rating: (1) Feedback Score: 1 reviews	Sr20det afm problems! Help So last week I started my sr20det after fixing a few boost leaks. It started to idle really bad and blow black smoke. The weird thing is that if I unplug my MAF and plug it in again it will go back to a fine idle. It seems I need to do this every time I start the car from cold. Also if I touch the wiring to the MAF it will change how it's idling. The wiring has two different joiners done professionally but too many wire splices could be the problem? Or bad maf? Help me out I'm stumped!

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10-17-2012, 04:38 PM	#2
norcaldriftin Zilvia Member Join Date: Sep 2012 Location: Chico CA Age: 30 Posts: 220 Trader Rating: (1) Feedback Score: 1 reviews	Ok so I solved the problem if people want to know what it was. The two bolts that hold the fuel rail down(one was missing and one was loose) so if anyone has a really shitty idle. That could be your problem!

11-01-2012, 09:16 PM	#3
illwill659 Join Date: Sep 2012 Location: Orlando Posts: 5 Trader Rating: (0) Feedback Score: 0 reviews	Thanks for the post I am having a similar problem except i believe that it is my MAF sensor. If i figure something new I will post it.