Yet another problem...

dthebuk · November 26, 2009, 11:22:14 AM

Quote from: rx7pat;656439I was once told you should hit red line at least once every few times you drive.

think this is mainly to clear out the secondaries, don\'t think they\'re used for start up?

My egi used to have a massive air leak and that didnt stop it starting at all, gave it a very erratic idle though.

don\'t think you can go wrong with puling out the injectors. Giving them a decent clean anyway would probably do a lot of good

Adam fc · November 27, 2009, 09:08:21 AM

right,ive come to the conclusion that this could be a combination of things stopping her from starting.

1,battery supplying incificiant cranking power
2,me using sub standard octane fuel around 96 octane
3,maybee a blocked fuel filter from me running her so low
4,possible blocked injector
5,some part of the ignition system
6,incificiant back pressure as turbo elbow was leaking badly,so put bung in tail pipe and started first time lol???

Car seems to start allot easyer once warm which would leave me to believe it was the battery??

grinder · November 27, 2009, 09:23:28 AM

im confused .. whats the turbo elbow

Prof · November 27, 2009, 09:37:42 AM

I wouldn\'t have thought number 6 was your issue if it\'s a turbo car - but maybe engine compression is poor ?

dthebuk · November 27, 2009, 11:46:50 AM

Quote from: Adam fc;6565624,possible blocked injector

your car has an AFM doesn\'t it?

does it read rich when your on boost between 4.5k and the redline?

Adam fc · November 27, 2009, 08:24:08 PM

Number six would be my worst fear as this could meen poor compression.being a turbo it shouldn\'t need back pressure at all??

My turbo elbow is the first part of the exhaust from the tub.

My battery indicator on top of the batt is showing the discharged colour in the indicator when a healthy batt would be showing a green in the indicator.

On the afm gauge she is showing rich at 4.5rpm but only just.this is on standard fuel 96 ron.

Brett · November 27, 2009, 09:51:59 PM

Ok... one thought springs to mind...

When you fitted the big bore system...did you fit a boost controller as well? If not its possible you might have over boosted in the cold weather and damaged something? (Although I\'d imagine thaty would fairly catastrophic)

Has it developed any other issues alongside the cold start probs?

And BTW... You mean down pipe, not turbo elbow

Adam fc · November 27, 2009, 10:42:33 PM

No I haven\'t fitted a boost controller yet but I\'m sure the highest it\'s boosted too is around 0.8 bar.

I may fit a mechanical controller for the time being just to safe guard things.

Like you say if it were to overboost and break something it would be fairly destructive.

Other than that it\'s been running fine,had a wiggle of the exhaust compressor wheel before I fitted the exhaust and there wasn\'t any play there either.

The car started fairly well today first time Infact without the bung in.

Im going to change the fuel filter next week and put some injector cleaner through aswell.any recommendations on Injector cleaner for these cars?

And yeah downpipe is what I meant lol.

Adam fc · December 03, 2009, 10:38:57 AM

The car seems to have magically fixed itself!

It\'s starting first time on the key now and im left totally puzzeled lol.

On another note my rough idle seems worse when i turn my light\'s off?? Anybody got any ideas lol??

Brett · December 03, 2009, 12:00:09 PM

Might be worth checking the earths, the fc suffers from earthing issues as it ages...

steve garbutt · December 03, 2009, 12:51:06 PM

Try a stronger battery and also check the alternator belt is tight enough.

grinder · December 03, 2009, 01:05:24 PM

if you find its an earth - i might have a very good cable to take from the battery to the shock tower ( stole it out of old UPS )

dthebuk · December 03, 2009, 02:07:09 PM

Quote from: Adam fc;657637The car seems to have magically fixed itself!

It\'s starting first time on the key now and im left totally puzzeled lol.

On another note my rough idle seems worse when i turn my light\'s off?? Anybody got any ideas lol??

either its a coincidence or its the weather. Mines recently been taking ages to start, it starts first time but just requires quite a bit of cranking. Though in the last few days it\'s started pretty much straight away everytime

ooooooo

Adam fc · December 03, 2009, 03:07:48 PM

Oh right,il have a root round,I assum the main ones are earthed to the bulkhead?

grinder · December 03, 2009, 04:42:34 PM

its earthed in a lot of places i think to be honest

im sure you can check it with a meter - just no idea how !! LOL

something about checking the resistance of the cables ( or say from the engine to the battery ) - if its high you have a bad earth - if its low then current passes thru easy - hence a good earth