sr20det help ???

sil180sx · 04-27-2005, 09:15 PM

just wondering if anyone has had this problem or knows any idea about:

at about 5000rpm the car sounds like its hitting rev limit... bububub bub buubu sound. doest happen without a load. and only happens if i floor the gas pedal... if i only put the pedal down halfway it boosts fine but as soon as i go past that certain point on pedal position i lose power and the car starts running like crap. car has a reytek standalone with a greddy emanage. thing is that i put the old ecu back in and still the samething... so it cant be the computer or the map sensor. also has hks fuel pump which was swapped out to see if that would fix it but still the same. same thing with the nismo fuel regulator, set to 60 psi. also swapped entire fuel rail still the same thing. im pretty sure its something with fuel. coil packs all checked good, throttle position sensor check out. not sure whats left any ideas or advice is appreciated. also does anyone know what controls the fuel pump... you know when you first turn the key.. you can hear the fuel pump come on but then it stops until you start... is it the egi pump relay?

HitAndRun · 04-27-2005, 10:51 PM

Quote:

Originally Posted by sil180sx

just wondering if anyone has had this problem or knows any idea about:

at about 5000rpm the car sounds like its hitting rev limit... bububub bub buubu sound. doest happen without a load. and only happens if i floor the gas pedal... if i only put the pedal down halfway it boosts fine but as soon as i go past that certain point on pedal position i lose power and the car starts running like crap. car has a reytek standalone with a greddy emanage. thing is that i put the old ecu back in and still the samething... so it cant be the computer or the map sensor. also has hks fuel pump which was swapped out to see if that would fix it but still the same. same thing with the nismo fuel regulator, set to 60 psi. also swapped entire fuel rail still the same thing. im pretty sure its something with fuel. coil packs all checked good, throttle position sensor check out. not sure whats left any ideas or advice is appreciated. also does anyone know what controls the fuel pump... you know when you first turn the key.. you can hear the fuel pump come on but then it stops until you start... is it the egi pump relay?

Chris...Give me a call, I just ot back to Oki...Dave

pony · 04-27-2005, 10:58 PM

might sound a little noobish of me, but are the wires working correctly? check the resistance.

sil180sx · 04-28-2005, 03:21 AM

Quote:

Originally Posted by pony

might sound a little noobish of me, but are the wires working correctly? check the resistance.

yea ohm coil packs,tps,map,boost sensor... pretty much everything... pretty sure its got something to do with fuel... just cant figure it out. anyone know what the egi relay controls the one next to the egi pump relay(controls fuel pump) or know where to get schematics at?

sil180sx · 04-28-2005, 05:47 AM

Quote:

Originally Posted by HitAndRun

Chris...Give me a call, I just ot back to Oki...Dave

yo man is your # still the same? i keep trying to call it but i get that japanese girl pm me with your new # or i will just keep trying to call the old one

stolen · 05-11-2005, 06:08 PM

Try checking the tps. cause that tells the ecu what you want to do with the throttle, which will decide if you want more gas for go or just chillen at a light. And make sure the the resistance grows or decreases like its suspose to through out the whole thing.

GotNismo? · 05-12-2005, 08:09 AM

id say yea it is with fuel but check everything electrical with the fuel system. i dont think its the fuel pump, unless its over working itself and just stopping after that certain spot. check for smoke ouuta the pipe when its running at high rpms. the car just may be running really rich for some reason and killing your power.

Nismo241 · 05-12-2005, 01:52 PM

Sounds like a boost leak

08-25-2008, 09:25 AM

Hi sil180sx,

Just wondering, have you solved your 5000rpm problem? If so, do you mind to let me know how?

Thank you very much!

04-27-2005, 09:15 PM	#1
sil180sx Registered User Join Date: Dec 2003 Location: okinawa,japan Posts: 152	sr20det help ??? just wondering if anyone has had this problem or knows any idea about: at about 5000rpm the car sounds like its hitting rev limit... bububub bub buubu sound. doest happen without a load. and only happens if i floor the gas pedal... if i only put the pedal down halfway it boosts fine but as soon as i go past that certain point on pedal position i lose power and the car starts running like crap. car has a reytek standalone with a greddy emanage. thing is that i put the old ecu back in and still the samething... so it cant be the computer or the map sensor. also has hks fuel pump which was swapped out to see if that would fix it but still the same. same thing with the nismo fuel regulator, set to 60 psi. also swapped entire fuel rail still the same thing. im pretty sure its something with fuel. coil packs all checked good, throttle position sensor check out. not sure whats left any ideas or advice is appreciated. also does anyone know what controls the fuel pump... you know when you first turn the key.. you can hear the fuel pump come on but then it stops until you start... is it the egi pump relay?

05-11-2005, 06:08 PM	#6
stolen Registered User Join Date: May 2004 Location: Fairfax Posts: 38	Try checking the tps. cause that tells the ecu what you want to do with the throttle, which will decide if you want more gas for go or just chillen at a light. And make sure the the resistance grows or decreases like its suspose to through out the whole thing. Last edited by stolen; 05-11-2005 at 06:11 PM.

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04-27-2005, 10:58 PM	#3
pony Join Date: Jun 2004 Location: houston Posts: 83	might sound a little noobish of me, but are the wires working correctly? check the resistance.

05-12-2005, 08:09 AM	#7
GotNismo? But officer i swear.... Join Date: May 2004 Location: New Orleans Posts: 234	id say yea it is with fuel but check everything electrical with the fuel system. i dont think its the fuel pump, unless its over working itself and just stopping after that certain spot. check for smoke ouuta the pipe when its running at high rpms. the car just may be running really rich for some reason and killing your power.

05-12-2005, 01:52 PM	#8
Nismo241 Registered User Join Date: Jan 2004 Location: aloha oregon Posts: 106	Sounds like a boost leak

08-25-2008, 09:25 AM	#9
supd Guest Posts: n/a	Hi sil180sx, Just wondering, have you solved your 5000rpm problem? If so, do you mind to let me know how? Thank you very much!