Jump to content
SAU Community

Adjusting The Idle Screw On The Aac (rb20det)

lows_13

By lows_13,
in General Maintenance

 Share

Recommended Posts

insu Rising Star

insu

Posted
Posted (edited)

Hey guys.

Hey RB30-POWER, where did you get the instructions for the resetting of the idle on the RB25DET? I only ask cause it was my DIY posted up on here to invloving my idle reset from when i cleaned my AAC valve.

I can't remember 100%, but i'm pretty sure I got my method from the nissan engine service manual.

I might have got it around the wrong way like you've posted and its the TPS sensor that needs to be removed while adjusting the idle through the idle adjustment screw, and not the AAC valve as is the method for the RB20det.

Either way, it seems to work i spose, as it is the AAC assembly that allows more air in for idle if it thinks the car needs it, and by disconnecting this plug while adjusting the base setting then re-attaching the connection and looking for any differences in idle speed before fine tuning if need be (though i still haven't heard of any skylines requiring this step).

The best reason I can think of for disconnecting the TPS from the RB25 while adjusting the idle screw, is so that the value coming from the TPS is absolutely nothing, so even if the car thinks it has to compensate for a TPS setting or that the Throttle is even partly open, it won't affect the setting of the idle.

Or I may be completely wrong.

Edited by insu

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Butters
      Thoughts on this .. G35-1050 pulsar result

      By Butters · Posted

      Nope, still smaller rear, put on the 4inch exhaust and picked up power everywhere, ended up just shy of 800rwhp.   Didn't seem to be hitting any walls either, so perhaps could have pushed for more but all maybes and the fish that got away etc etc. 
    • MBS206
      NC MX5

      By MBS206 · Posted

      Races cars don't care for VIN either...
    • GTSBoy
      NC MX5

      By GTSBoy · Posted

      This could be sold and shipped to the US for many gold pieces. RMS has no say in that. Ask various Western Sydney inhabitants how it works.
    • MBS206
      Shoota's R33 GT-R RB30/26

      By MBS206 · Posted

      Ha ha ha, mine loves to spend, all on the dogs (they're our kids, and her spending would likely rival that of some people raising children!) the only benefit is, her spending is tax deductible as she runs a business in the dog industry 😛 The above all means she can spend race car budget quicker than I can. 😛 That and a lot of the things I want are very expensive, and I can be a bit "you want how much for that?!" And at other times overly impulsive. Or I start the w days of research, get to day 1.5 and get really annoyed that no one will advertise actual specifics and it's just marketting BS and I go "well, now I don't want anything to do with that now!" Also I hate paying lots of money for something I can make from $50 in materials. Then I get the shits halfway through making things and wonder why others who just buy parts have more fun... 😛  
    • The Bogan
      NC MX5

      By The Bogan · Posted

      Their 240Z with the RB26 would be a real nice thing to have in a garage to come out for an occasional weekend cruise It's such a cool thing in so many ways Sadly, we have a blue 240Z shell that I walk past every day, just sitting outside a shed at work, it has been slowly disintegrating and falling apart into the ground for the last few years, the owner cannot be found, and I am unable to "claim it" I've been told by work and the RMS, the rust in the body is excessive though, and it has had most of the salvageable stuff, like panels, trim and switch gear stripped off it over the last year or two, work keeps threatening to put it in one of our metal scrap bins, I wish they did though, as it makes Mark sad walking past it  
×
×
  • Create New...