dude Posted May 18, 2003 Author Share Posted May 18, 2003 Martin see above , lol . i tested the map at the map plug not the ecu . John Quote Link to comment Share on other sites More sharing options...
Guest Martin F Posted May 18, 2003 Share Posted May 18, 2003 Originally posted by dudersvr ok so i need to test voltage at the black/yellow wire (62) at the ecu , but where do i test it as its cut , either side of the incision i suppose ??? John Would be best to test it both sides, the more information the better. But its essential to test it at the ECU side as this will then tell you what the ECU is seeing and in turn you can try to guess\predict what it will do when it see's that type of signal. Quote Link to comment Share on other sites More sharing options...
dude Posted May 18, 2003 Author Share Posted May 18, 2003 Sorry guys forgot to ask what voltages in relation to specific boost reading should i be looking for on the map wire??? John:flame Dev Quote Link to comment Share on other sites More sharing options...
Guest Martin F Posted May 18, 2003 Share Posted May 18, 2003 Originally posted by dudersvr Martin see above , lol . i tested the map at the map plug not the ecu . John Need to test at the ECU, what you've done just tells you that the MAP is working. What voltage did you get at the MAP ? Quote Link to comment Share on other sites More sharing options...
Guest Martin F Posted May 18, 2003 Share Posted May 18, 2003 Originally posted by dudersvr Sorry guys forgot to ask what voltages in relation to specific boost reading should i be looking for on the map wire??? John:flame Dev Take a look here :- http://www.mkivsupra.net/vbb/showthread.php?s=&threadid=8563&perpage=15&pagenumber=2 I have no specific pressure vs voltage data for the MAP sensor but the voltage can only go one of two ways as the pressure increases. Quote Link to comment Share on other sites More sharing options...
dude Posted May 18, 2003 Author Share Posted May 18, 2003 I believe it was 2-3volts as the engine was revving , it was about what pete said to look for .Thanks for the help guys just dont desert me know as we seem to be getting somewhere but right now its a bit late to talk this much invloved tech stuff , if i get a chance tommorrow i will try to test the volts down at the ecu on wire 62 and report back , thanks dudes. John:flame Dev Quote Link to comment Share on other sites More sharing options...
dude Posted May 19, 2003 Author Share Posted May 19, 2003 didnt get a chance to test today but did notice one thing if i let the revs rise in 2nd then just before 4000 really nail the throttle ive got mega boost by 4500rpm , this worked every time , any thoughts John:thumbs: Quote Link to comment Share on other sites More sharing options...
THOR Racing Posted May 20, 2003 Share Posted May 20, 2003 Is this a standard ECU? or a replacement? (like Mines, AEM etc) Did it ever work properly? How sudden was the change to it not working? Gradual or abrupt. Maybe I've missed some history here. It's like the speed and load calculations inside the ECU etc are mucked up. (probably due to some sensor failure) Ummm... getting more diffifult as time goes on. Pete Quote Link to comment Share on other sites More sharing options...
Matt Harwood Posted May 20, 2003 Share Posted May 20, 2003 Originally posted by dudersvr didnt get a chance to test today but did notice one thing if i let the revs rise in 2nd then just before 4000 really nail the throttle ive got mega boost by 4500rpm , this worked every time , any thoughts John:thumbs: Sounding even more similar to my problem now... No.2 rarely come's in 1st gear, but after that, it's ok, albeit not coming in until 4500rpm. Or, if changing down a couple of gears, no.2 won't make an appearence until either I back off and gun it again, or let the revs build up and change up... Odd Not that this helps you... Quote Link to comment Share on other sites More sharing options...
dude Posted May 20, 2003 Author Share Posted May 20, 2003 Right guys , the next stage ... tested the map wire at ecu and it is giving out the correct voltage , about 1.2 on no throttle in drive and then rising as manifold pressure rises , i think it got up to about 4volts on full boost , but the more i drive it the more i realise that if i 'punch' the throttle to the floor i can make the turbos come on full boost by 4500rpm , could this be a throttle or rpm issue now as we know the map is giving the ecu its signal . Pete ,its a MINES ecu, the car has allways been like this since i got it on the road but like i said it was the same with another ecu/map/vsv's , i believe the revs and throttle position wires are fine TO the ecu as they seem to tally up on the display on my s-afc which i unplugged and ran the car with it off but the map wire joined back up to make a circuit . Ideas guys if any of you want to test it at bracknell thats cool , if leon hadnt mentioned the problem i would just think they are a slightly laggy car so prehaps some of you can give me an opinion . John:flame Dev Quote Link to comment Share on other sites More sharing options...
MONKEYmark Posted May 20, 2003 Share Posted May 20, 2003 you dont think you have the laggy UK turbos fitted do you? just a thought.when you drive and hold revs at 3000rpm then floor car there is a slight pause then second turbos should kick in about 4000revs with a big kick. mine seems to go ok on first turbos then second turbo comes online with loads more pull its mad. do you think it could be anything to do with the big intercooler you have on car, sure there has been threads about you can have too big an intercooler. and dont you pick up a bit of lag on fmic too. hope you get it sorted. Quote Link to comment Share on other sites More sharing options...
matt Posted May 20, 2003 Share Posted May 20, 2003 Ooh! That sounds familiar............ I had a similar problem when my HKS SLD played up. The OD off light was flashing too ........ Probably bollocks , but kinda backs up Petes theory on the speed / load calc thang? Do you have a seperate De-limiter ? Or is it sorted by the Mines? If it is de-limited by the Mines ECU , you can probably ignore the above:innocent: Quote Link to comment Share on other sites More sharing options...
dude Posted May 20, 2003 Author Share Posted May 20, 2003 De-limited by the Mines :( Still runs sub 13 second 1/4 miles on the Blitz power meter though John:flame Dev Quote Link to comment Share on other sites More sharing options...
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