Can't rev?? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

silversr · 12-10-2006, 02:34 PM

I just got done swapping in an sr20 in my 92 240, but there seems to be a problem, I cannot get it to rev,I can start it up fine but when I step on the gas it does nothing,so I went outside to turn the throttle by hand, but still nothing. I was thinking it was my z32 mafs but I don't think that would have an affect right?

**Phlip** · 12-10-2006, 02:39 PM

Is the car properly setup to run that MAF, or did you just plug it in, close your eyes and hope it would work?
Any such situation, stock/modified, KA/SR, "can't rev" issues usually start at the MAF.

TKfoshori · 12-10-2006, 02:39 PM

my guess is maf also. it doesnt even rev a tiny bit?

silversr · 12-10-2006, 03:03 PM

I got an Enthalpy tuned ecu to run z32 mafs and 740cc injectors.I'm using the stock z32 pigtail and matched it up to the sr's but the only thing I didn't do is ground the maf to the chasis,I heard it wasn't needed?

Sileighty_85 · 12-11-2006, 03:05 AM

Sounds like you didnt plug in your TPS. Its not the MAF if it was your MAF the car would run shitty or most likely not run at all .

silversr · 12-11-2006, 10:06 AM

everything is plugged in as far as I can see, I was thinking it might be the tps but I have to wait and get a multimeter to check it out.

silverarrow27 · 12-11-2006, 11:49 AM

I've driven my car with tps plugged and unplugged, didn't make a difference.

Check the tps if it's within spec and check the maf while you're at it.

12-10-2006, 02:34 PM	#1
silversr Zilvia Member Join Date: Jan 2006 Location: Iowa Posts: 261 Trader Rating: (7) Feedback Score: 7 reviews	Can't rev?? I just got done swapping in an sr20 in my 92 240, but there seems to be a problem, I cannot get it to rev,I can start it up fine but when I step on the gas it does nothing,so I went outside to turn the throttle by hand, but still nothing. I was thinking it was my z32 mafs but I don't think that would have an affect right? __________________

12-10-2006, 02:39 PM	#2
Phlip Yes, I look like that Join Date: Mar 2002 Location: In my supervillain's lair Posts: 27,980 Trader Rating: (19) Rides Gallery: Phlip Feedback Score: 19 reviews	Is the car properly setup to run that MAF, or did you just plug it in, close your eyes and hope it would work? Any such situation, stock/modified, KA/SR, "can't rev" issues usually start at the MAF. __________________ Weirdo And I write too!

12-10-2006, 02:39 PM	#3
TKfoshori Leaky Injector Join Date: Oct 2006 Location: WashingtoN Age: 37 Posts: 63 Trader Rating: (0) Feedback Score: 0 reviews	my guess is maf also. it doesnt even rev a tiny bit? __________________ For Sale

12-10-2006, 03:03 PM	#4
silversr Zilvia Member Join Date: Jan 2006 Location: Iowa Posts: 261 Trader Rating: (7) Feedback Score: 7 reviews	I got an Enthalpy tuned ecu to run z32 mafs and 740cc injectors.I'm using the stock z32 pigtail and matched it up to the sr's but the only thing I didn't do is ground the maf to the chasis,I heard it wasn't needed? __________________

12-11-2006, 10:06 AM	#6
silversr Zilvia Member Join Date: Jan 2006 Location: Iowa Posts: 261 Trader Rating: (7) Feedback Score: 7 reviews	everything is plugged in as far as I can see, I was thinking it might be the tps but I have to wait and get a multimeter to check it out. __________________

12-11-2006, 03:05 AM	#5
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	Sounds like you didnt plug in your TPS. Its not the MAF if it was your MAF the car would run shitty or most likely not run at all .

12-11-2006, 11:49 AM	#7
silverarrow27 Zilvia FREAK! Join Date: Oct 2005 Location: Banning, CA Posts: 1,428 Trader Rating: (11) Feedback Score: 11 reviews	I've driven my car with tps plugged and unplugged, didn't make a difference. Check the tps if it's within spec and check the maf while you're at it. __________________ 1989 240sx XE\|2002 Frontier SC CC LB 4wd\|2011 Pathfinder LE V8 4wd