Sr20det doesn't go past 3,500 rpm - Page 2 - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

247_c2c · 09-03-2012, 06:23 PM

Key on engine off

***S14DB*** · 09-03-2012, 06:26 PM

Eww, that's way to high. Should be like 0.25v

Also, what's your battery voltage?

247_c2c · 09-03-2012, 06:31 PM

At the battery is 12.10volts

247_c2c · 09-03-2012, 06:32 PM

Do you think it could be the ecu?? Im running a mines tuned ecu that I got with the swap but he didn't tell me what it was tuned for and the car is running way to rich

[email protected] · 09-03-2012, 06:40 PM

theres your problem. i could be tuned to a z32 maf and you dont even know it

247_c2c · 09-03-2012, 06:41 PM

I have a stock ecu just not here with me so I might have to try that in a sec but would that still make it stop reving at 3500?

slow40sx · 09-03-2012, 07:02 PM

what maf sensor do u have?

247_c2c · 09-03-2012, 07:03 PM

The Stock sr

slow40sx · 09-03-2012, 07:10 PM

i would try the stock ecu, the ecu u have is probably tuned for a z maf

247_c2c · 09-03-2012, 07:16 PM

I'm already on my way back to the car with the stock ecu

247_c2c · 09-03-2012, 08:13 PM

Fixed it! Thanks for the help guys! I was the dumbass that didn't check for all vacuum problems

***S14DB*** · 09-03-2012, 08:17 PM

Quote:

Originally Posted by 247_c2c

Do you think it could be the ecu?? Im running a mines tuned ecu that I got with the swap but he didn't tell me what it was tuned for and the car is running way to rich

The MAF should be putting out 0.25v at key on not 0.85v. It's way to high especially at 10v. ECU thinks there is a lot more air than there is.

What is the voltage at the ecu? I wonder where the voltage drop is.

Dolby109 · 09-03-2012, 08:32 PM

Glad you have it solved.
As for the original chain questions, it may be just fine. Because the chain is not symmetrical it will not line up with the marks every time. If you turn it over enough eventually you should get the marks on both cams right as it hits TDC (second mark from the left I believe). It may take as many as 15 or 20 revolutions.

247_c2c · 09-03-2012, 09:27 PM

Quote:

Originally Posted by S14DB

The MAF should be putting out 0.25v at key on not 0.85v. It's way to high especially at 10v. ECU thinks there is a lot more air than there is.

What is the voltage at the ecu? I wonder where the voltage drop is.

Yea I'll have to look into it I didn't check the voltage at the ecu yet I kinda called it a day lol it was getting late so imma do it this week when I have a chance

247_c2c · 09-03-2012, 09:42 PM

Quote:

Originally Posted by Dolby109

Glad you have it solved.
As for the original chain questions, it may be just fine. Because the chain is not symmetrical it will not line up with the marks every time. If you turn it over enough eventually you should get the marks on both cams right as it hits TDC (second mark from the left I believe). It may take as many as 15 or 20 revolutions.

Thanks! Yea because if it was off then the car wouldn't start so I would think at least

09-03-2012, 06:26 PM	#32
*S14DB* AFC #1 Join Date: Oct 2003 Location: 昨晩あなたのお母さんの家 Posts: 20,181 Trader Rating: (3) Feedback Score: 3 reviews	Eww, that's way to high. Should be like 0.25v Also, what's your battery voltage? __________________ Comments should be taken as Opinions not as Statements of Fact

09-03-2012, 07:02 PM	#37
slow40sx Nissanaholic! Join Date: Jul 2007 Location: Virginia Beach Posts: 1,979 Trader Rating: (3) Feedback Score: 3 reviews	what maf sensor do u have? __________________

09-03-2012, 07:10 PM	#39
slow40sx Nissanaholic! Join Date: Jul 2007 Location: Virginia Beach Posts: 1,979 Trader Rating: (3) Feedback Score: 3 reviews	i would try the stock ecu, the ecu u have is probably tuned for a z maf __________________

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09-03-2012, 06:23 PM	#31
247_c2c Zilvia Member Join Date: May 2012 Location: Lake Elsinore, Ca Posts: 250 Trader Rating: (7) Feedback Score: 7 reviews	Key on engine off

09-03-2012, 06:31 PM	#33
247_c2c Zilvia Member Join Date: May 2012 Location: Lake Elsinore, Ca Posts: 250 Trader Rating: (7) Feedback Score: 7 reviews	At the battery is 12.10volts

09-03-2012, 06:32 PM	#34
247_c2c Zilvia Member Join Date: May 2012 Location: Lake Elsinore, Ca Posts: 250 Trader Rating: (7) Feedback Score: 7 reviews	Do you think it could be the ecu?? Im running a mines tuned ecu that I got with the swap but he didn't tell me what it was tuned for and the car is running way to rich

09-03-2012, 06:40 PM	#35
[email protected] Nissanaholic! Join Date: Jul 2008 Location: Zacatecas, Mx; Paramount, Ca Age: 31 Posts: 1,626 Trader Rating: (32) Feedback Score: 32 reviews	theres your problem. i could be tuned to a z32 maf and you dont even know it

09-03-2012, 06:41 PM	#36
247_c2c Zilvia Member Join Date: May 2012 Location: Lake Elsinore, Ca Posts: 250 Trader Rating: (7) Feedback Score: 7 reviews	I have a stock ecu just not here with me so I might have to try that in a sec but would that still make it stop reving at 3500?

09-03-2012, 07:03 PM	#38
247_c2c Zilvia Member Join Date: May 2012 Location: Lake Elsinore, Ca Posts: 250 Trader Rating: (7) Feedback Score: 7 reviews	The Stock sr

09-03-2012, 07:16 PM	#40
247_c2c Zilvia Member Join Date: May 2012 Location: Lake Elsinore, Ca Posts: 250 Trader Rating: (7) Feedback Score: 7 reviews	I'm already on my way back to the car with the stock ecu

09-03-2012, 08:13 PM	#41
247_c2c Zilvia Member Join Date: May 2012 Location: Lake Elsinore, Ca Posts: 250 Trader Rating: (7) Feedback Score: 7 reviews	Fixed it! Thanks for the help guys! I was the dumbass that didn't check for all vacuum problems

09-03-2012, 08:32 PM	#43
Dolby109 Leaky Injector Join Date: Feb 2006 Location: Dayton, OH Posts: 85 Trader Rating: (0) Feedback Score: 0 reviews	Glad you have it solved. As for the original chain questions, it may be just fine. Because the chain is not symmetrical it will not line up with the marks every time. If you turn it over enough eventually you should get the marks on both cams right as it hits TDC (second mark from the left I believe). It may take as many as 15 or 20 revolutions.