Rado wont start

[Dlicence 0]

Right, today I bought a 1.8t 20v converted corrado. test drove it and it started fine, drove it all the way back home. when I tried to start it again, nothing!

the starter doesn't even click, so its not stuck.

when I turn the ignition on the fuel pump comes on, you can hear it buzzing away. then when I try to start it, the pitch of the fuel pump buzzing changes but nothing happens.

 

has anyone had this problem before?

 

my mate had a similar thing on his mk2 16v, he ended up making a heat shield for the starter.

[classic 0]

Check the starter / exciter wire to the starter motor solenoid, make sure your getting supply when the key is turned to the start position, if its not then check for wiring cuts / corrosion / loose connections ect. (think its usually a blue wire iirc, but dont hold me to it !)

Goodluck

[Purple Tom 0]

Check that it definitely hasn't got some sort of special hidden immobiliser or even an obvious one that you've forgotten to disarm...

[Peebee 0]

Could be ignition issues! When you try to start it turn the key, when it's as far as it goes lift it up a bit (if that makes sense)

sometimes ignition barrels can play up.

[owen g60 10]

sound to me like imobiliser

[Wullie 1]

Always one for the simple things, have you tried a different battery/jump start?

[Dlicence 0]

it started fine again yesterday morning, drove it around for a bit and it started fine the next couple of times. got in it this morning and it was a bit hard to start but it started. drove to uni, parked it up, came back 4 hours later and it was really hard to start, took about 12 attemts. drove it around for a bit and it goes really well!

came home and parked it up, tried to start it this evening and after 15 attempts i had emptied the battery. took it out straight away and put it on charge.

im gone rule out immobiliser because it has only got one which cuts the fuel pump and i could definitely hear it when i was trying to start it as it is very noisy!

could that be a problem with the fuel pump as its still the KR one that was originally in the car and it is really noisy now.

im going to check spark tomorrow.

anymore ideas?

 

cheers

Seb

[Dlicence 0]

one of my mates reckons all 4 coilpacks have gone but that seems highly unlikely to me as was was running fine before I switched it off the last time or could that be it?

[Dlicence 0]

Im now pretty sure its the crank sensor thats gone, its got spark and fuel and it turns over for ever but doesnt start. it doesnt make a difference with the crank sensor connected or not.

does that sound about right?

Im just removing it but its pretty stuck in there :(

[robrado974 1]

It will come out mate but they are tight . Replaced mine the other week .I doubt the packs have gone ,they tend to go one by one . Could be the crank sensor, as i found out it will still spark but not at the right time ? think thats right!. Hope you get it sorted .

 

edit do a search aswell loads of stuff in there .

[Dlicence 0]

cheers,

I got the sensor out eventually but the end of the bolt stripped :(

I got my new crank sensor delivered yesterday but had to go to the stealers get the bolt as it turns out to be a friggin M7! WTF? honestly what is the ****ing point of that, I looked at the crank sensor on my vr6 and it looks similar but its held in with an M6. whats the reason for having an m6 in a vr6 and anM7 in a 1.8t? ah I know, must be the boost :D

 

also i got some material for making a little heat shield around the starter motor, if that doesn't help the hot start issues I ll make some cold air ducting to the starter.

[VW_OwneR_85 2]

wouldnt waste your time makeing a heat shield for your starter motor, wont make any differance,

you want to find out what causes hot start problems with 1.8 t motors, temp sensor? engine bay heat wont effect your starter motor from turning over otherwise vw would of made a heatsheild for it.hope you gert it sorted, any pics? of ya new motor? :)

 

here check this site out, everything about 1.8t's is on here somewhere

http://forums.vwvortex.com/showthread.php?2666114-1.8t-Technical-Forum-Guide-FAQs-Tuning-Modification-Assistance-Troubleshooting

Edited October 6, 2011 by VW_OwneR_85

[Dlicence 0]

cheers for the link! some really good info there.

 

here are some pics of it:

 

 

 

 

 

so today i put a new crank sensor in and it didn't make a difference. what a waste of time, it was hard to get out but to put it back in I had to take the radiator, oil filter and oil cooler off, friggin nightmare.

 

right, temp sensor next :(

Edited October 6, 2011 by Dlicence

[VW_OwneR_85 2]

looks clean!! funky looking engine bay! like a 90's disco :)

do you know if theres a diagnostic port? also did the previous owner mention anything

that may indicate a problem?

[Dlicence 0]

I ve got vag-com on my laptop and the obd2 cable but its no good as the diagnostic port in the dash is not obd2. I need to find out what management its running and get the according cable. I believe its running Qpeng but how can I verify this?

 

here is a video of the engine when I try to start it. its turning over and when I feather the accelerator real quick it starts to turn over faster and faster before it gets slow again. once it even started after ive been turning it over for 2 minutes whilst feathering the throttle quickly

 

http://s118.photobucket.com/albums/o87/669hoff/?action=view&current=VIDEO0014.mp4

[apd vr 10]

i bet it starts every time from another cars battery or bumped?sounds to me not holding charge.any decent garage should tell you wot ampage its holding.if low ampage change the battery?

[Turborado 10]

What was the problem in the end? did you get it sorted? my corrado is starting to play up by refusing to start for me! i have similar problems