Hoping you can tell me

djbust · Post by **djbust** » Fri May 09, 2008 12:40 am

sometimes when driving hard and going to mivec it feels like it isnâ€™t working and losing power plus noises are happening from the engine bay at the same time please help

Post by **dstocks** » Fri May 09, 2008 8:14 am

Is this soon after youve started the car. If so, that will be the computer retarding the engine because the car hasnt warmed up properly

djbust · Post by **djbust** » Fri May 09, 2008 11:14 am

no the car is already warm

Post by **dstocks** » Fri May 09, 2008 11:28 am

What sort of noises

djbust · Post by **djbust** » Fri May 09, 2008 11:44 am

its really hard to explain like a clunking noise sorry not great detail noises are so hard to explain

Post by **I8A4RE** » Fri May 09, 2008 12:40 pm

There could be a problem with the alternator thats causing mivec to be not working but that doesnt explain the clunking noises

djbust · Post by **djbust** » Fri May 09, 2008 1:16 pm

its like when it trys to hit mivec it cant but it still trys to would that make some sort of noise. Oh and sorry to sound like a noob but why does mivec not work when the alternator is playing up?

Post by **I8A4RE** » Fri May 09, 2008 1:29 pm

not really sure, someone else may be able to help you out there. all i know is the mivec alterntor has four pins so compare to the gr withs with 2. Im thinking that when the car hits mivec it could send a surge of power to something (or everything). So if the ecu recognises that there is a problem with alternator it stops allowing mivec to come on. Now i could be completly off i dont know, just kinda of thought it while i was writting lol

Post by **dstocks** » Fri May 09, 2008 1:29 pm

Think its to do with the current draw. The alternator for a mivec certainly has something in there for it, because people that have put in GR alternators by mistake, dont get mivec

djbust · Post by **djbust** » Fri May 09, 2008 1:43 pm

well alternator was charging at 14.2 to 14.5 and how exactly does the 4 pin alternator work with the mivec

Post by **I8A4RE** » Fri May 09, 2008 2:47 pm

Not sure but the question has been asked a lot but no one seems to know

manofwood · Post by **manofwood** » Fri May 09, 2008 2:55 pm

it only does it when you go 'hard' to 5500 rpm +?
If you take it easy getting to mivec does it 'engage'?
does it just make a sound, and then return to the low range cams despite being over 5500rpm when you go hard at it?

Post by **Bennoz** » Fri May 09, 2008 9:31 pm

The mivec alternator has 4 pins as it has a secondary output. The oil valve actuation that put the pins into the second rocker arms requires a pretty heavy power hit - hence the extra output.

Post by **I8A4RE** » Fri May 09, 2008 11:23 pm

^^^^^^^^ yeah what he said

I was close.......not

mr-charisma · Post by **mr-charisma** » Sat May 10, 2008 12:05 am

djbust wrote:sometimes when driving hard and going to mivec it feels like it isnâ€™t working and losing power plus noises are happening from the engine bay at the same time please help

have you checked your ECU Error codes yet?

mr-charisma · Post by **mr-charisma** » Sat May 10, 2008 12:09 am

Oh, and here's a few links that might help you;

http://www.ftoaustralia.com/modules.php ... ec+working
http://www.ftoaustralia.com/modules.php ... ec+working

djbust · Post by **djbust** » Sat May 10, 2008 1:23 am

manofwood wrote:it only does it when you go 'hard' to 5500 rpm +?
If you take it easy getting to mivec does it 'engage'?
does it just make a sound, and then return to the low range cams despite being over 5500rpm when you go hard at it?

yeah its when going full throttle over 5500 rmp + mivec will sometimes engage and sometimes doesnt
and when it makes the noise it a continues noise and not engaging mivec then i release the throttle because i dont want to break anything
dont know about taking it easy to mivec because when i use mivec i am driving the car hard

djbust · Post by **djbust** » Sat May 10, 2008 1:25 pm

ok went to get ecu codes out and we followed the website http://www.ftowa.com/html/workshop/workshopart07.html shorted pin 1 to earth to recover the codes [engine managment flashed constantly but the abs light was doing the blink code] it gave me a code 13 [ inlet air temperature ] is it right that the abs light gives out the codes ? do you think that this would cause my problems that i am having?

Post by **Bennoz** » Sat May 10, 2008 4:04 pm

Do you get a nasty shudder thru the pedal when it happens?

mr-charisma · Post by **mr-charisma** » Sat May 10, 2008 4:43 pm

djbust wrote:ok went to get ecu codes out and we followed the website http://www.ftowa.com/html/workshop/workshopart07.html shorted pin 1 to earth to recover the codes [engine managment flashed constantly but the abs light was doing the blink code] it gave me a code 13 [ inlet air temperature ] is it right that the abs light gives out the codes ? do you think that this would cause my problems that i am having?

Hmm... Where is the Air temperature sensor in a GPX? Does it have one? (wheres CAPS when you need it!

)

FTO AUSTRALIA

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