black top issue - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

nitefire · 02-03-2005, 02:06 PM

Ok, first off I'm new to this board and want to say hi.

Ok, here is my problem. I have a black top installed into a 90 240Sx with SR trani, all the wiring was done off of SRswaps web site. When I leave the MAF unpluged the car runs fine. But as we all know you can't boost or accellerate. However when i plug the MAF in the car begins to sputter, throw mads amount of fuel and goes from 17 vacuum to 10 vacuum.

Here's what I've tried:
check wiring to MAF..apears to be fine No loose connections
checked for codes...got code 55
installed Walbro 255
checked for boost leaks
timing is dead on.

Again as long as I leave the maf off it runs fine. Little info on the MAF. I'm using the sohc maf and the plug has the black, b/w, white plugs..I just pluged them up accordly. Anyone run into this problem?

02-03-2005, 02:06 PM	#1
nitefire Join Date: Feb 2005 Location: Viriginia Age: 50 Posts: 4 Trader Rating: (0) Feedback Score: 0 reviews	black top issue Ok, first off I'm new to this board and want to say hi. Ok, here is my problem. I have a black top installed into a 90 240Sx with SR trani, all the wiring was done off of SRswaps web site. When I leave the MAF unpluged the car runs fine. But as we all know you can't boost or accellerate. However when i plug the MAF in the car begins to sputter, throw mads amount of fuel and goes from 17 vacuum to 10 vacuum. Here's what I've tried: check wiring to MAF..apears to be fine No loose connections checked for codes...got code 55 installed Walbro 255 checked for boost leaks timing is dead on. Again as long as I leave the maf off it runs fine. Little info on the MAF. I'm using the sohc maf and the plug has the black, b/w, white plugs..I just pluged them up accordly. Anyone run into this problem?

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