Some Question Before My Upgrade Week (Finally)!

[itpesaf]

How much did your SAFCII cost? and where did you get it installed?

[Nightcrawler]

I bought it ages ago - but you can find them around for as cheap as $200 or so 2nd hand (mine is the limited edition black, so was about $100 more when new). But the SAFC Neo with the funky colour screen and better gauges has replaced the SAFCII. They are around $500 brand new.

I fitted it myself (it is only around 5 wires), and Martin Donnon at Willall Racing Tuned it. I gained about 5rwkw and up to 100Nm of torque in places from the tune.

[itpesaf]

Thanks mate!

On another side note - since I installed the plenum spacer/z tube/rev-up airbox i've noticed my car idles a little low (~550-600), and sometimes when I turn it on (after the engines warmed up) the revs will drop so low that the car will turn off. It always turns on again the second time.

I've gone through all the plenum bolts and tightened them up - and checked around the edge of the plenum and there seems to be no leaks. I've also checked the z-tube and the airbox and everything seems to be nice and tight.

When I was taking everything apart for the install I did accidentally touched the maf sensor thing inside the maf housing, so don't know if this has something to do with it:?

I guess I want to know whether the car acting like that is bad/dangerous for the engine, and whether it's a common problem after these mods? I read somewhere on another forum that the car takes a while to get used to the new mods.

[Nightcrawler]

Not sure - but do an ECU reset anyways - might fix the problem. Just disconnect the +ve lead of the battery, pump the brake pedal 10x and you are done.

[PN-Mad]

That ECU reset doesn't work.

What you should be looking at is the manual reset, which is a combination of throttle pedal pumps timed in a certain way. You can also achieve the throttle postion check, and idle re-learn, all of which you should do after those mods. Just search, and you'll find the combination.

Also "resetting" the ecu is just clearing the learned fuel settings, which is all based around the O2 sensor readings.  

The other thing you should check out is the rear face of the throttle body for build up of contamination. This cause the TB to stick and lead to idle issues.

[itpesaf]

I tried the ecu reset and thing it worked.

However when i tried the trottle body reset i have no idea whether it worked :S it says in the instructions that if the car stalls as soon as you try to turn it on again then it didn't work and thats what happened to me. Any tips on doing throttle body reset?

I think I'm going to try cleaning my maf first to see if that helps - has anyone attempted this before?

The idle issue isn't major right?

edit: I might also clean my throttle body - noticed a bit of black gunk inside it. Are there any good products I can use to clean both the throttle body and MAF?

Edited December 12, 2012 by itpesaf

[PN-Mad]

annoying, but not major.

When doing the idle reset, the car at normal running temp (hot) should rev up to about 1700rpm, and drop slowly to just above stall, pick back up and normalise. The ECU will read if idle learning has been completed.

You can clean the MAF, its good practice. Use an electrical contact cleaner, or auto shop MAF cleaner. Other general cleaners may be too harsh esp carb cleaner. Make sure you have no vacuum leaks- all hoses plugged back in, the oil filler rubber isn't folded into the plenum (guilty of that ), and you have evenly tightened down the plenum. Its really doesn't need to be too tight, as it can warp. I use a drill with a 10mm socket, and a little tweak with a socket.

[itpesaf]

Thanks mate, I reckon i'll clean both the throttle body/maf and then do the reset and hopefully that works.

Oh and i looked around the edge of the plenum and it seems like there are no folds in the gasket, and the rubber around the oil cap isn't caught in the plenum either.

[PN-Mad]

Do a bit of a search on the throttle body cleaning. Read up first. There is a few do's and don'ts.

hope you sort it out.

If no luck, get the error codes flashed/read, and see if there is a different sensor issue (Crank/cam sensors)

[itpesaf]

Ok found out what the problem was - in my excitement I had forgotten to use the washers for the 6 inner plenum bolts lol.. and because they have those plastic inner plenum spacers I had to remove everything to take the bolts out to put the washers on :S luckily it seems to have worked for now - hopefully the issue has been fixed!