R33 A/f Readings

[Darky82]

Ok I just fitted my wideband and this is what I'm getting.

Cold start low 17s to 18s

Warm idle 16

Cruise 16 to 17

Wot low 13s

Coast closed throttle 22.4

[gotRICE?]

Seems horrifically lean for all of the above. Bar closed throttle.

Try re calibrate.

I am assuming its a turbo R33 mind you.

[Darky82]

Hi. Yes, when I had the exhaust manifold off the exhaust valves are white eeeee! Half way up the valve stem also.

Yes it's r33 s1 93

Yeah I did recalibrate.

[Darky82]

Nothing?

[scotty nm35]

Uumm, get a tune?

[StevenCJR31]

Yep, agree with the above

Running lean and the colour of the exhaust valves back that up

[Darky82]

Ok but whys this happening, do these problems arise due to a faulty sensor possibly a/f or map sensor. If so what voltages from where should I be seeing?

.

[Darky82]

Also using 100 fuel.

[KiwiRS4T]

Nothing?

Well you haven't supplied any context. Is your engine bog standard and if not what mods? Do you have a tunable ecu?

[Darky82]

Sorry, stock ecu I have a f/ic 6 to install, fmic, pod, 3in turbo back, split dump pipe, electronic boost controller only using stock boost.

[eightsixboy]

Something doesn't ad up, must have low fuel pressure or something to cause it to run lean.

Best thing to do would be to check you fuel pressure, pump etc

[Darky82]

Ok will do.

[Darky82]

Ok it's fine, also how could if be fuel pressure issue if the pressure is there in boost in high rev range it would be starving for fuel.

[Darky82]

I even crimped my return line and no change in af ratio.

[Darky82]

I just want to sell this piece of crap and I just got it, had enough already!

[Got a Pulsar]

My AFM although seemingly working fine, was actually Faulty and caused some mad Pinging when I was getting a tune. (SAFC2)

Swapped in a replacement and all good.

Try a different AFM and see if the results are the same...

[Darky82]

Yeah I was going to start there than o2 than injectors. Cheers.

[Darky82]

Also I read somewhere internally that you can run map only on the the f/ic is that true, any tips/tricks to installing it on my car.

Also if I'm getting a new afm can a z32 be used with the fj/ic.

[Darky82]

World of info this f**ken place is no one knows shit.

Knowf**kallaustralia!!! Piece of shit skylines f**ken selling mine. Good luck with your pieces of crap jap built f**ken shit boxes. Spend more time off the road than they do on it than get on here with nothing to do no info and guess at shit with no f**king clue. Ahhhh get a tune? What sort of dumb shit is that. f**k if you don't know shit don't say nothing, cause the chances of you f**king someone else's car are high.

So sit there and wank off in front if your computers/phones what ever because there is a very limited number of people on here that know wtf there on about.

Good luck knowf**kallaustral!!

Edited October 4, 2013 by Darky82

[StevenCJR31]

^^ hope your medication kicks in soon mate

With an uneducated rant like that you are def heading for a brain aneurysm