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Rough idle

Discussion forum of the Nissan Ecology Orientated Variable Valve Lift and Timing engine. Discussion on all variants of VE engines including the VET and 20V models. Please also use this forum for all SRxxDE(T) specific questions.
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mwall
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Posts: 3
Joined: Tue Apr 03, 2018 7:53 am
Name: Max
Car: N15 Pulsar sss
Engine Code: sr20de
Gender: Male - Male

Rough idle

#38382

Post by mwall » Tue Apr 03, 2018 12:16 pm

G'dday Peoples

I am new to this and have just finished putting a sr20ve p11 head onto the sr20de bottom in my n15 sss.

When it warms up to operating temp it drops to about 650 rpm and runs pretty rough. I noticed the throttle closes as it warms up also.

It has the sr20de harness
sr20ve ecu
sr20ve MAF
vvl solenoids are not wired yet
sr20de distributor

I have timed the base ignition to around 10 degrees

any help will be appreciated

Cheers

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sss4me
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Joined: Wed Jul 25, 2012 9:52 am
Name: enzo
Engine Code: sr20ve
Gender: Male - Male

Re: Rough idle

#38383

Post by sss4me » Thu Apr 05, 2018 10:32 am

sr20ve timing is 5 degress. lock the timing (method needed to do this) , set the timing to 5 degrees, then adjust the iacv valve out to you get 750-800rpm. make sure the tps value is 0.5v.

side note (your in aus) get into the pulsar group of australia (forum/facebook) or pulsar owners group on facebook for more info

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mwall
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Posts: 3
Joined: Tue Apr 03, 2018 7:53 am
Name: Max
Car: N15 Pulsar sss
Engine Code: sr20de
Gender: Male - Male

Re: Rough idle

#38384

Post by mwall » Thu Apr 05, 2018 2:43 pm

Thank you but what is the tps value?

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sss4me
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Posts: 176
Joined: Wed Jul 25, 2012 9:52 am
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Engine Code: sr20ve
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Re: Rough idle

#38385

Post by sss4me » Fri Apr 06, 2018 10:59 am

Throttle Position Sensor... its attached to the throttle body. should be 0.5v at idle.

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mwall
Cadet
Cadet
Posts: 3
Joined: Tue Apr 03, 2018 7:53 am
Name: Max
Car: N15 Pulsar sss
Engine Code: sr20de
Gender: Male - Male

Re: Rough idle

#38386

Post by mwall » Sat Apr 07, 2018 6:31 am

Cheers

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