Early B6t, super rich at idle, TPS?

[AmmoJammo]

Its the stock B6t ecu, running stock B6t injectors, with a stock B6t turbo... stock afm, stock fuel pump...
bigger exhaust, fmic.

[NitroDann]

You would have to guess its in limp mode.

Stock afm is a hot wire type? Is it dirty?

TPS is confirmed working?

Dann

[AmmoJammo]

AFM is a spring loaded flap.

TPS is just a switch on the early B6t's, which is what this is... it seemed to be better when I directly shorted it out.. but that may have just been because the car had warmed up...

[AmmoJammo]

I think the lack of cold idle compensation, and the fact the idle speed was set to about 800rpm, has resulted in the fuel not atomising properly..

I've increased the idle to 1000rpm, and it seems to be better, so I'll give it another go tomorrow and see what happens.

[bruce]

You could fit a spark plug to the tip of your muffler and wire it to power and a switch on your dash, for instant flames!

[AmmoJammo]

Its still not right.

It appears my AFM has been messed with before... the cover has been removed, so chances are the spring tension has been twiddled...

I've ordered an Innovate MTX-L, so I'll see what that says, and maybe adjust the air flow meter from there...

I was considering buying another AFM, but I'll wait till the meter arrives before I do anything else ;)

[AmmoJammo]

[AmmoJammo]

I believe my cold idle enrichment is stuck on...

My TPS switch doesn't always work...

AFRs seem to be a bit all over the place... which is what makes me think the TPS doesn't always close the switch when coasting. Sometimes in the 10's, other times high 14's/low 15's.

http://www.youtube.com/watch?v=mlRAY7E3 ... e=youtu.be

[emily_mx5]

I would go about eliminating possibilities, starting from the free/cheapest and working up to the more expensive/labor intensive.

1) take off and clean your cold start valve which is on the inlet manifold, and your idle speed control valve. You can do this with carby cleaner and an spare hour.
2) whilst your coolant is drained for step 1, check that your thermostat is working - take it out and pop it in a cup of boiling water. If it opens its working, if it doesnt open but a new one, they are less than $20 from repco.
3) make sure your cold idle is correct, should be around 900, use the diagnostics box method.
4) check your tps, take off the black cover, its really simple, just some copper probes that touch or not at idle or wot. I can remember off the top of my head but I'm sure there is info on here/google.
If its not connecting as it should, buy a known working 2nd hand one.
5) buy a 'new' afm, 2nd hand ones come up here all the time, i'm presuming its the same as an NA6 afm.

Hope this helps!

[AmmoJammo]

thanks for the suggestions, I'm not going to bother with this forum anymore.

[emily_mx5]

umm sorry what? everyone has gone out of their way to help you, i'm not sure what more you expected

[corners]

thanks for the suggestions, I'm not going to bother with this forum anymore.

I was going to reply to offer help, I don't think I'm going to bother anymore

[sailaholic]

He can't find his build thread he thought he made here. Admin did some pruning to old topics in non mx5 related stuff due to issues on the forum. The topic may have been removed by accident.

[AmmoJammo]

it was the most comprehensive build log I'd put on any forum, and I used it for my own reference, and also to get links to the pics if I needed to show someone else something.

[Pamex]

Talk to the admin then. It should still be cached and around somewhere.

Don't throw all your toys out yet, considering a lot of people went out of their way to help you, and spent their time replying to you and all they got in response was 'I'm not going to bother anymore'.