Jump to content
Please check your junk folder for registration emails ×
  • Current Donation Goals

    • Raised $0.00

JDM 2007 BP5 Running rich


killervq30de

Recommended Posts

Had the car dyno at the recent AKL ClubSub dyno day and the car is running rich .. not a big surprise when I think about the lower fuel economy I seem to have compared with other people on the forum.

My car is JDM 2007 BP5 with 92,xxx KM's on the clock .. where do I start to troubleshoot and resolve this AND which ones are going to have the best gains

1. How many O2 sensors are there.. are say the fronts more common to fail than the rears so start there .. which ones play the biggest factor in the fueling

2. Knock sensor (unrelated) but on my old A32 Maxima knocksensors were common to Half-fail and not throw a CEL.. timing just wouldn't advance as much. Subs?

3. MAF? is that being dirty a factor? Airfilter should be ok .. I get it serviced at Winger Sublabs mainly for warranty but also I've had a good run there

4. Fuel filter? Is it replaceable - probably not a factor either though

5. Spark plugs - they'll be done at the 100k service (i guess)

Anything else?

Link to comment
Share on other sites

  • 4 weeks later...

ok.. late late reply

I get an average of 400-500(tops) on a tank around Auckland, which can be quite hilly in places. I drive it like its a turbo car.

On the economy meter thing I get around 7-8Km/l around town and long distance (can't recall but) 12Km/l

So again from my top post, what I can do/replace to get some economy (and power) back. I got flash/tune until my Mechanical Warranty is up next July.

dyno.jpg

Edited by killervq30de
Link to comment
Share on other sites

  • Admin

yea thats pretty bad economy ay. Power isn't all that bad considering how low everyone else got that same day.

Why not just get an e-tune. If you keep everything else stock they wouldn't know any better. You'll get better economy and a small bump in power. Can easily get an extra 1-2psi out of it without needing to worry about extra cooling needs.

Link to comment
Share on other sites

 KarlGTB said:
I think my best average ever for a tank on the factory trip meter is 10.7 km/L. Mines auto though. I came from a BG GTB so I thought I was actually doing quite well, maybe not!

Hopefully not long distance otherwise your round town must be as bad as mine?

Link to comment
Share on other sites

 Andy_Mac said:
yea thats pretty bad economy ay. Power isn't all that bad considering how low everyone else got that same day.

Why not just get an e-tune. If you keep everything else stock they wouldn't know any better. You'll get better economy and a small bump in power. Can easily get an extra 1-2psi out of it without needing to worry about extra cooling needs.

Rather not mess with the tune right now. I'm hoping its dieing O2 sensors. It's at 93kms now and I got it at 55kms, economy seems to be getting worse but it's always been 7-8km/l

Link to comment
Share on other sites

What's your journey like, what's the average speed and distance? It looks pretty normal to me...

My old 04 GTB auto got about 500km per tank on 50km a day motorway trips in traffic, that was with a light foot on flat-ish land. Total open road it would get to 12km/l and 600-700k per tank.

Link to comment
Share on other sites

So maybe my consumption is normal? But the dyno chart shows its running rich? My car was probably bit heat soaked, as I drove there, parked up for not long and then dyno'd without airflow. Wouldn't think it would make the ECU run the car rich though.

Link to comment
Share on other sites

you can get wideband o2 sensor for $300 if you wanna monitor it yourself on the go. New factory sensor can be brought from partsouq

o2 sensors are one of the general causes for rich fueling but it could be anything (I'm not super familiar with the newer stuff but injector seals are common leak points on early engines)

my old legacy with rich tune gets 6-7 km per L lol

Link to comment
Share on other sites

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
  • Recent Status Updates

    • MrSg9Sti04

      Afternoon team,
      im new to the group first time posting. Im hoping some body can help me get my launch control all dialled in on my link g4x. Ive had the computer and car all tuned from chris at prestige awesome knowlegable guy super happy with the results but now im wanting to get my launch/anti lag all dialled in. Ive been reading multiple different forums etc all with different conflicking information which has made me nervious with what do i listen to this or that if you get what i mean. Now ive started to make myself familiar with my PClink software etc the past few weeks and im eager to learn how to do minor setups or tweaks etc so im not relieing on my tuner so much and obviously saving myself abit hurt in the back pocket. 
      Now back to the question at hand.... Im wondering if theres and one who could please share there knowledge and wisdom with setting all my values, timing, fuel etc when i have launch control armed and engaged, or even a launch tune file they can possibly send me to load onto my tune. Ive figured out the setup of my digital inputs turning launch control on etc and its obvisously on its pre set factory settings. It engages but doesnt sound the greatest or as angry as it should i feel. Hence reaching out to you good buggers. 
       
      Cheers in advance for any info and help yous maybe able to give me.
       
      Cheers Shaun
      · 0 replies
    • Joker  »  gotasuby

      updated your DP's too : hope that's ok!
      · 0 replies
    • Joker  »  SAS

      Updated your DP's to reflect your business page  
      · 0 replies
    • Joker  »  Nachoooo

      Updated your Avatar : couldnt help myself  cheers!
      · 0 replies
  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Forum Statistics

    40.9k
    Total Topics
    573.5k
    Total Posts


×
×
  • Create New...