Jaycar Digital Air/Fuel Ratio Meter, Boags..! help!

Astroboysoup · Postby **Astroboysoup** » Thu Feb 01, 2007 1:29 pm

http://www.autospeed.com/shop/category_ ... rowse.html

just wondering if anyone knows if this will work on our 5s.

the EGO sensor needs to have a 1V ouput. im not sure what the output is on ours with out my multimeter here at work with me.

if it doesn't, could i install a 1V EGO sensor closer to the end of my exhaust, e.g near exhaust tip, and hook it up for tuning..?

what you think guys?

Fatty · Postby **Fatty** » Thu Feb 01, 2007 1:56 pm

this is the one that boag's installed, a thread or 2 below this one :mrgreen:

just that you didn't know that coz he STILL hasn't got any PICTURES in the thread

Astroboysoup · Postby **Astroboysoup** » Thu Feb 01, 2007 2:01 pm

serious???

i gotta read more carefully.. for some reason i thought it was that other one.. little LED light one...

well. i guess its back to JayCar after work and i'll be making that tonight after my date down at the beach

hopefully its not another all nighter.

Boags · Postby **Boags** » Thu Feb 01, 2007 2:09 pm

Astroboysoup wrote:serious???

i gotta read more carefully.. for some reason i thought it was that other one.. little LED light one...

well. i guess its back to JayCar after work and i'll be making that tonight after my date down at the beach

hopefully its not another all nighter.

It took me 2 afternoons to put it together, then 3 months to get around to calibrating the bloody thing. Works a treat though!

I really need pics in my thread... :frown:

Boags

Astroboysoup · Postby **Astroboysoup** » Thu Feb 01, 2007 2:12 pm

don't worry boags

i'll put the thing together tonight and calibrate it tomorrow on the dyno and then put the pics up before lunch. ;)

Boags · Postby **Boags** » Thu Feb 01, 2007 2:29 pm

Astroboysoup wrote:don't worry boags

i'll put the thing together tonight and calibrate it tomorrow on the dyno and then put the pics up before lunch. ;)

Calibrating it involves getting a 1V power supply.

Not as easy as it sounds.

Boags

Fatty · Postby **Fatty** » Thu Feb 01, 2007 2:59 pm

you should be able to rig a 1v supply by using a potentiometer tapped off the main power source. astro should know how to do this as it's the method used to calibrate the dfa which he has already built.

Boags · Postby **Boags** » Thu Feb 01, 2007 3:03 pm

It was another language to me.

Astro must be Super Geek! Make sure you get the damn pics up!

Boags

Astroboysoup · Postby **Astroboysoup** » Thu Feb 01, 2007 3:40 pm

super geek...!!!

eh

yeh i guess

yeh ive bench tested the DFA but haven't installed it on the car and I don't think i'll be able to tonight before the tune tomorrow... but i'll see how i go tonight..

I have a job app to write tonight...!!!

Fatty · Postby **Fatty** » Thu Feb 01, 2007 3:42 pm

installation takes 10 minutes. come on you can do it. otherwise dyno is a bit of a waste of time isn't it ?

Astroboysoup · Postby **Astroboysoup** » Fri Feb 02, 2007 2:29 am

2am

i can't do it

im too sleepy and theres no chance of me installing if before hand

I'll still be on the dyno... i have the HKS VPC to tune...

next week when i get the A/F ratio fuel mixture display and DFA installed i'll do some simple fine tuning until i can get back on the dyno again.

right now i need sleep

have to get up early and do my job app still too..

Astroboysoup · Postby **Astroboysoup** » Fri Feb 02, 2007 11:10 am

nup nup.. pulled out early again

always a good thing

just getting extractors installed and going for a power and a/f run just too see what im getting.

gotta install the DFA a/f meters

Astroboysoup · Postby **Astroboysoup** » Tue Feb 06, 2007 2:50 pm

hey Boag's

im having major probs setting up this little thing...

im up to adjusting VR2 but its just not working!

the instructions say earth the sensor signal so i did and then states that you should either get a close to 0.00 or \" - . \" on the display... then you just have to adjust the vr2 or 3 can't rem off the top of my head, until you get 0.00

its not working..! it stays on \" - . \" aaaaaaaargh and yes i've soldered the 1.8k ohm resistor across the 9pin and earth... BAH

advice and help please...!

Boags · Postby **Boags** » Tue Feb 06, 2007 3:57 pm

Sorry mate. All I did was solder it then hand it to my mate to calibrate. Try adjusting VR3 around to see if you can get it on the scale. Other than that, I must admit, I am useless as tits on a bull when it comes to electronics. :oops:

Fatty, is great with this sort of thing, give him a shout out.

Boags

Fatty · Postby **Fatty** » Tue Feb 06, 2007 6:25 pm

well i have no first hand experience with this particular kit so i don't really have much to add. all i can suggest is that you re-read the calibration instructions and make sure that you follow them to the letter.

sorry, not much help am i ?