Learning View Snapshots \ Discussions

[alexeiwoody]

Haha yeah looks like you're getting into it Nathan

Thanks matt, that's fair enough. On an unrelated note - I should probably pm this but was the fuel filter clogged because of e85? Seems a bit soon, for a relatively new car that never really saw that much unleaded?

[KiDo_Tuning]

Haha yeah looks like you're getting into it Nathan

Thanks matt, that's fair enough. On an unrelated note - I should probably pm this but was the fuel filter clogged because of e85? Seems a bit soon, for a relatively new car that never really saw that much unleaded?

It was an O ring from the fuel drum pumping system that made its way into the fuel tank.

[alexeiwoody]

Oh nice...sounds like you have a monster of a fuel pump

[KiDo_Tuning]

Oh nice...sounds like you have a monster of a fuel pump

O ring disintegrated/pulped itself into black sooty powder. Replacing fuel pump once it arrives

[dle]

Good work with the rom! Good thing matt knows his stuff.

Check the vac hoses, especially the one from the bov going to intake manifold? That one is under the intercooler. The rest will all be visible from the top, might need to remove engine cover.

If that doesn't work use a bit of start ya bastard spray to see what area the leak is in, or get a boost leak test done

Yep popped the engine cover to have a look already. The only thing that I didn't do was take off the TMIC to double check any hoses underneath however I did try my best to duck and weave to search for hoses. Will look further into it this weekend otherwise I'll get a leak test done.

Also I doubt a HKS panel filter would affect the A/F learning? Would it be a good idea to swap back to stock filter to see what the result would be? Otherwise, would the front o2 sensor have something to do with it?

Remove the small 4mm vacuum hose off the end of the BOV at the BOV end while th engine is running, it should have a strong vacuum. If no vacuum, then it has come off at the back of the inlet manifold under the intercooler.
However, most of the 2L LGT tunes run a pretty high + figure due to the stock cam timing at idle. DR20T experimented with his idle by altering the exhaust retard at idle(800 rpm left 3 or 4 columns of Exhaust AVCS A) but if you want a simple fix, just find the values under 5.6g/rev and multiply them by 1.15 in EcuFlash

Firstly, thanks for all the help so far about this issue and sorry for the delayed response. Been pretty busy with work lately but have managed to do a further inspection under the bonnet on the weekend.

So I removed that 4mm hose from the BOV and there is vacuum. Though I'm not sure what you would classify as 'strong'... its more subtle to describe it. Wasn't crazy strong but there was definitely some vacuum present. So I decided to take off the TMIC and check the hoses underneath. Not that I knew what to look out for but I had a good look under at anything and everything that was connected to a hose and couldn't find anything 'out of the ordinary'.

So I've booked for my mechanic to do a leak test this Saturday. He suspects it to be a leak as well and not related to a bad MAF sensor. Any other ideas before I splash some cash to hopefully identify the problem?

I could possibly borrow my mates MAF sensor to eliminate the possibility. Surely his MAF sensor wouldnt be buggered either to validate the test.

I might even take out the HKS panel filter and put the original one back on to see if it makes any difference.

Matt, you've mentione dthat the 2.0GT's usually run high +'s however what seems to be the acceptable amounts?

Once again, thanks for all your help guys

[KiDo_Tuning]

I suspect a leak if the vacuum is not 'strong' at idle
Also get the mechanic to check the OCV AVCS Inlet solenoid filter baskets are removed

[dle]

I suspect a leak if the vacuum is not 'strong' at idle
Also get the mechanic to check the OCV AVCS Inlet solenoid filter baskets are removed

Went to my mechanic on Saturday who couldnt find any leaks. I mentioned about the solenoid but he doesn't think that will be it. Any other suggestions?

[KiDo_Tuning]

I suspect a leak if the vacuum is not 'strong' at idle
Also get the mechanic to check the OCV AVCS Inlet solenoid filter baskets are removed

I mentioned about the solenoid but he doesn't think that will be it. Any other suggestions?

Speaking from the number of people who have suffered the pain caused by this solenoid, it is worth checking it. The filter basket crumbles and blocks oil flow. It is a simple fix/repair, remove the 17mm bolt head on the OCV solenoid, use a pick to fish the basket out and throw away. Refit bolt, never any more issues.

[dle]

I suspect a leak if the vacuum is not 'strong' at idle
Also get the mechanic to check the OCV AVCS Inlet solenoid filter baskets are removed

I mentioned about the solenoid but he doesn't think that will be it. Any other suggestions?

Speaking from the number of people who have suffered the pain caused by this solenoid, it is worth checking it. The filter basket crumbles and blocks oil flow. It is a simple fix/repair, remove the 17mm bolt head on the OCV solenoid, use a pick to fish the basket out and throw away. Refit bolt, never any more issues.

have been searching numerous threads on the forum about intermittent idle issues and also came across this. Saw cruisn's post about what to do. Just to confirm, we're removing the battery for better access and removing the solenoid to reveal the banjo bolt? Then using a pick to remove the filter out and throw away completely without replacing? Then refit as usual and I won't have any more issues regarding high A/F learning #1? Or idling?

[bigBADbenny]

I can help you out Dave give me a call to discuss.

[KiDo_Tuning]

have been searching numerous threads on the forum about intermittent idle issues and also came across this. Saw cruisn's post about what to do. Just to confirm, we're removing the battery for better access and removing the solenoid to reveal the banjo bolt? Then using a pick to remove the filter out and throw away completely without replacing? Then refit as usual and I won't have any more issues regarding high A/F learning #1? Or idling?

Correct.

[Hotwire]

Kido Tuned MY04 GT

Car is running great! acceleration is much more progressive than my own tune with a combination of DBW, AVCS and timing changes. Much less peaky tune, and much more fun. Auto trans is shifting more logically too and overall very happy.

will update with another LV in a few weeks to see how its been going, but overall, Matt's been a big help in getting the car sorted!

[shav]

awesome to see Lee.

[dle]

have been searching numerous threads on the forum about intermittent idle issues and also came across this. Saw cruisn's post about what to do. Just to confirm, we're removing the battery for better access and removing the solenoid to reveal the banjo bolt? Then using a pick to remove the filter out and throw away completely without replacing? Then refit as usual and I won't have any more issues regarding high A/F learning #1? Or idling?

Correct.

Tried this today, no filters in the banjo bolts. Took both solenoids out and gave them both a good clean. Since the battery terminal was taken off, ecu was reset so I drove for a good 10kms to bring IAM back to 1. Still showing high AF learning 1

[maj]

Hey dle, have you checked the vac hose on your MAP sensor? (just left of the alternator when you remove the engine cover)

I've had it happen before when the dealership left it off, horrible erratic idle.

My MY05GT developed a bad idle again, after resetting ECU I checked and it looked like it was still on. Did LV and I'm getting +15 under AF learning #1 at idle. BOV vacuum suction is nice and strong.

Took a closer look, and the hose fell off at the other end! not the MAP end.

Going to reset and take for another drive soon.