SR20 problems - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

240sx_Dylan · 10-31-2014, 05:16 PM

so ever since i got my 240 like 2 weeks ago theres been a problem. if im under 4k rpm's and i floor it, it wont make like any power or boost. but as soon as i hit 4k it feels like a bat out of hell. so i did a pressurized boost leak test today and found a massive leak in the turbo compressor outlet pipe from the gasket. so im wondering if that could be the culprit???
thanks in advanced for the help!

angel mkiv · 10-31-2014, 05:33 PM

I would check your timing, clean out the maf with some cleaner and obiously fix the boost leak.also make sure your turbo spins freely and doesn't have tons of shaft play or in and out movement..

240sx_Dylan · 10-31-2014, 06:34 PM

newb question. how do i check timing? and i checked the turbo for shaft play and crap the other day and its all good. and what would you suggest to clean the maf?

angel mkiv · 11-01-2014, 12:21 AM

The maf should have 2 screws holding it in and remove tho se and pull the sensor carefully and spray it with a bottle of maf cleaner that you can get at any auto parts store..read the bottle for further instructions.

And for timing you want to get the engine at full operating temp, unplug the tps and hook up the timing light to the #1 cylinder.(front of engine). The way to get signal from there is getting a peice of spark plug wire and putting it in between the spark plug and coilpack.then hook up the lead/clip to the wire. Make sure your timing is at 15*btdc. Google it if my "how to didn't make sense"

240sx_Dylan · 11-01-2014, 04:26 PM

thanks man i appreciate the help! ill report back to let you know how it went when my gasket gets here.

Kingtal0n · 11-01-2014, 05:06 PM

You dont need to use the piece of plug wire, you can clip the timing light directly onto the coilpack like this

be aware: most timing lights have directional pickups. Make sure you flip the pickup both ways, and check to see if the timing at the crankshaft makes sense.
Some pickups will actually have an arrow that points towards the plug.

Sileighty_85 · 11-01-2014, 07:37 PM

any leak is bad. chance are that is your issue. Replace the gasket

EnergeticPhenom · 11-09-2014, 02:51 PM

I'm new to nissan and it Silvia world, but is using cleaners on mafs okay? I know for mitsubishi, it isn't recommended.

Tom N · 11-09-2014, 04:00 PM

Quote:

Originally Posted by EnergeticPhenom

I'm new to nissan and it Silvia world, but is using cleaners on mafs okay? I know for mitsubishi, it isn't recommended.

Yes as long as it's a mass air flow cleanser.

10-31-2014, 05:33 PM	#2
angel mkiv Zilvia Addict Join Date: Sep 2009 Location: Seattle, wa Posts: 725 Trader Rating: (4) Feedback Score: 4 reviews	I would check your timing, clean out the maf with some cleaner and obiously fix the boost leak.also make sure your turbo spins freely and doesn't have tons of shaft play or in and out movement.. __________________ Instagram username:angelmkiv

11-01-2014, 12:21 AM	#4
angel mkiv Zilvia Addict Join Date: Sep 2009 Location: Seattle, wa Posts: 725 Trader Rating: (4) Feedback Score: 4 reviews	The maf should have 2 screws holding it in and remove tho se and pull the sensor carefully and spray it with a bottle of maf cleaner that you can get at any auto parts store..read the bottle for further instructions. And for timing you want to get the engine at full operating temp, unplug the tps and hook up the timing light to the #1 cylinder.(front of engine). The way to get signal from there is getting a peice of spark plug wire and putting it in between the spark plug and coilpack.then hook up the lead/clip to the wire. Make sure your timing is at 15*btdc. Google it if my "how to didn't make sense" __________________ Instagram username:angelmkiv

11-01-2014, 05:06 PM	#6
Kingtal0n Post Whore! Join Date: Jul 2005 Location: South Florida Age: 38 Posts: 4,649 Trader Rating: (17) Feedback Score: 17 reviews	You dont need to use the piece of plug wire, you can clip the timing light directly onto the coilpack like this be aware: most timing lights have directional pickups. Make sure you flip the pickup both ways, and check to see if the timing at the crankshaft makes sense. Some pickups will actually have an arrow that points towards the plug. __________________ 5.3/4l80e/turbo 240sx playthrough: https://tinyurl.com/turbo240

11-01-2014, 07:37 PM	#7
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	any leak is bad. chance are that is your issue. Replace the gasket __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

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10-31-2014, 05:16 PM	#1
240sx_Dylan Join Date: Oct 2014 Location: NY Posts: 18 Trader Rating: (0) Feedback Score: 0 reviews	SR20 problems so ever since i got my 240 like 2 weeks ago theres been a problem. if im under 4k rpm's and i floor it, it wont make like any power or boost. but as soon as i hit 4k it feels like a bat out of hell. so i did a pressurized boost leak test today and found a massive leak in the turbo compressor outlet pipe from the gasket. so im wondering if that could be the culprit??? thanks in advanced for the help!

10-31-2014, 06:34 PM	#3
240sx_Dylan Join Date: Oct 2014 Location: NY Posts: 18 Trader Rating: (0) Feedback Score: 0 reviews	newb question. how do i check timing? and i checked the turbo for shaft play and crap the other day and its all good. and what would you suggest to clean the maf?

11-01-2014, 04:26 PM	#5
240sx_Dylan Join Date: Oct 2014 Location: NY Posts: 18 Trader Rating: (0) Feedback Score: 0 reviews	thanks man i appreciate the help! ill report back to let you know how it went when my gasket gets here.

11-09-2014, 02:51 PM	#8
EnergeticPhenom Zilvia Member Join Date: Nov 2014 Location: Austin, TX Age: 35 Posts: 208 Trader Rating: (3) Feedback Score: 3 reviews	I'm new to nissan and it Silvia world, but is using cleaners on mafs okay? I know for mitsubishi, it isn't recommended.