Fueling Fundi's

rat · Post by **rat** » Thu Oct 15, 2009 7:47 am

if you plan to keep your current engine then nistune BUT to find someone to tune it also keeps all your std sensors

dicktator cheap and anyone can tune it but little loads sites to tune compared to the nistune system

Charlvdw · Post by **Charlvdw** » Thu Oct 15, 2009 7:48 am

If you gonna run the same motor for a while go nistune.
For the record i can get you a walbro for R1200.

Andrew.200SX · Post by **Andrew.200SX** » Thu Oct 15, 2009 7:58 am

PFB said that he will setup the Nistune for me gratis .

Walbro pump - brand new R1200 ? If so I will give you a shout when I am ready. I supose it is better to get anyway , imaterial of the problem that I have at the moment.

Andrew.200SX · Post by **Andrew.200SX** » Wed Oct 21, 2009 7:50 am

Hey guys , me again.

This car is really baffling me. When it is cold it runs semi ok , and when the heat guage rises it holds back.

This morning , I left the gym and a couple of trucks were holding me up, so I decided immaterial of the miss , boot it ! 3rd all the way up to 8000 , 4th 8000 no miss ! Check heat guage , it is still cold. 5 minutes later , boot it in 3rd , it starts holding back , look at the heat guage , it's halfway.

Why the hell would the car run fine occasionally. Surely if there is a fault it should be constant !

rat · Post by **rat** » Wed Oct 21, 2009 7:57 am

that sounds like with the extra fuel when it is cold it boosts fine but when hot its too lean

Andrew.200SX · Post by **Andrew.200SX** » Wed Oct 21, 2009 8:10 am

What would be causing that ? I am also still convinced it is a fueling problem , but where do I start looking ?

Charlvdw · Post by **Charlvdw** » Wed Oct 21, 2009 8:28 am

It would be good if you can compare the afr between cold and warm. The fact that your car revs to 8000rpm worries me.

Andrew.200SX · Post by **Andrew.200SX** » Wed Oct 21, 2009 8:52 am

Why would it worry you ? I have taken her up to 8500 when she wasn't cocking me around .

In otherwords , what is going to break ?

rat · Post by **rat** » Wed Oct 21, 2009 8:56 am

Charlvdw wrote:It would be good if you can compare the afr between cold and warm. The fact that your car revs to 8000rpm worries me.

ja the CA redline at about 7600 and the SR at 7200

rat · Post by **rat** » Wed Oct 21, 2009 8:58 am

do you have a piggyback on your std management?

Charlvdw · Post by **Charlvdw** » Wed Oct 21, 2009 9:00 am

Andrew.200SX wrote:Why would it worry you ? I have taken her up to 8500 when she wasn't cocking me around .

In otherwords , what is going to break ?

Breaking doesn't worry ,but the thing that does is the lack of a rev limiter before 8k.

Andrew.200SX · Post by **Andrew.200SX** » Wed Oct 21, 2009 9:09 am

It is a stock S13 , except for the 76 mm freeflow and air filter. It was maintained by the Agents up until 150 000 and the guy I bought it from had it up until 158 000 , so I don't know if he did anything. Judging by the semi mutalated Sabre he was driving , anything is possible.

Charlvdw · Post by **Charlvdw** » Wed Oct 21, 2009 10:11 am

I'm not sure where the rev limiter should be but if its gone there could be some after market chip attached to the ecu which could stuff up your fueling.

Andrew.200SX · Post by **Andrew.200SX** » Wed Oct 21, 2009 10:17 am

I can appreciate that , but the car was running perfectly up until about 3 weeks ago.

I think the best is going to be put it on a dyno and see if it is running lean or over fuelling or if it is losing spark.

what do you guys think ?

Charlvdw · Post by **Charlvdw** » Wed Oct 21, 2009 10:52 am

Sounds good.