New Engine / DriveTrain Project
sorry this question has nothing to do with the project but i'm hoping u experts can help, driving along today in a punto then the temp gauge and rev counter start going all over the place then the car dies and the code light comes on, the engine turns but wont start, any ideas?
colin
colin
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From: ECU Mapping - www.JollyGreenMonster.co.uk
I don;t think here is the right place to ask or to answer but..
If the temp gauge and revs were all over the place, sounds like a coolant leak.. sensor for gauge and ecu temp see air then water etc as the air bubbles go through the system.. ecu sees cold when air goes through and puts choke on hence revs increase, then sees water temp and revs drop as it turns the choke off.
If it now won't start then it sounds like the leak is due to head gasket or you have warped the head etc etc..
Check your water level and look for cream in the oil and oil in the water etc..
Sounds like you probably killed it though, best thing for the poor Punto.
Simon
If the temp gauge and revs were all over the place, sounds like a coolant leak.. sensor for gauge and ecu temp see air then water etc as the air bubbles go through the system.. ecu sees cold when air goes through and puts choke on hence revs increase, then sees water temp and revs drop as it turns the choke off.
If it now won't start then it sounds like the leak is due to head gasket or you have warped the head etc etc..
Check your water level and look for cream in the oil and oil in the water etc..
Sounds like you probably killed it though, best thing for the poor Punto.
Simon
Dear Mr.Wallis,
I will have a little spare cash this weekend and i was thinking about pumping it into the leg.
We need to have a team-talk about 'the plan' and purchasing some bits.
Mr.X
P.S. Sold the blue saloon for £1000 (with the gearbox still popped out of its mind). 'I love it when a plan comes together'
I will have a little spare cash this weekend and i was thinking about pumping it into the leg.
We need to have a team-talk about 'the plan' and purchasing some bits.
Mr.X
P.S. Sold the blue saloon for £1000 (with the gearbox still popped out of its mind). 'I love it when a plan comes together'
Thread Starter
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From: Leeds - It was 562.4bhp@28psi on Optimax, How much closer to 600 with race fuel and a bigger turbo?
Fuzz..
I need to get on with it now..
Its been a bit difficult as weve been building a new workbench in the back of the garage.. which will give me somewhere to fix the spare gearbox etc.. and make car parts..
Will be sorted soon
David
I need to get on with it now..
Its been a bit difficult as weve been building a new workbench in the back of the garage.. which will give me somewhere to fix the spare gearbox etc.. and make car parts..
Will be sorted soon

David
wwaahhhayy 
Good luck.
is that it done then ?
when's the next roller session?
Did you finish mapping it, last I heard you were on your way down my neck of the woods on a marathon mapping session. ?
Andy
P.s persuade Steven to get back here and post.......

Good luck.
is that it done then ?
when's the next roller session?

Did you finish mapping it, last I heard you were on your way down my neck of the woods on a marathon mapping session. ?
Andy
P.s persuade Steven to get back here and post.......
Thread Starter
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Joined: Nov 2001
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From: Leeds - It was 562.4bhp@28psi on Optimax, How much closer to 600 with race fuel and a bigger turbo?
Ive tried talking to steven.. at the end of the day its his choice..
he has two kids and a wife which come before the car..
Anyway, we mapped it a bit more.. didnt really touch timing, mainly fueling.. and it hasnt been mapped in boost areas... however once ive built a little circuit to take a
9:1 - 19:1 0 - 5v output to a linear 10:1 - 30:1 0-1v then im in business to run fully closed loop.. circuit is designed, bits are at home.. footy tonight though.
Will try car and then see about mapping if it works.
David
he has two kids and a wife which come before the car.. Anyway, we mapped it a bit more.. didnt really touch timing, mainly fueling.. and it hasnt been mapped in boost areas... however once ive built a little circuit to take a
9:1 - 19:1 0 - 5v output to a linear 10:1 - 30:1 0-1v then im in business to run fully closed loop.. circuit is designed, bits are at home.. footy tonight though.
Will try car and then see about mapping if it works.
David
Thread Starter
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Joined: Nov 2001
Posts: 15,239
Likes: 1
From: Leeds - It was 562.4bhp@28psi on Optimax, How much closer to 600 with race fuel and a bigger turbo?
9:1 - 19:1 is the AFR range that my wideband will do.. you get a linear voltage between 0 and 5volts representing the above..
i need to then rescale this output to pretend to be 10:1 - 30:1 with 0 - 1 volts.. (which is what my ecu wants..)

David
i need to then rescale this output to pretend to be 10:1 - 30:1 with 0 - 1 volts.. (which is what my ecu wants..)

David
Thread Starter
Scooby Regular
Joined: Nov 2001
Posts: 15,239
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From: Leeds - It was 562.4bhp@28psi on Optimax, How much closer to 600 with race fuel and a bigger turbo?
Rev counter now working..
Missfire seems better / gone.. just need a road test..
also..
My solution to test for wideband.. as designed by my dad..
http://www.wallis2000.co.uk/newproject/op_amp.xls
or..
works down to 8v.. Just operating temp to look at now.
(See note on resistors for 9:1)
David
Missfire seems better / gone.. just need a road test..
also..
My solution to test for wideband.. as designed by my dad..
http://www.wallis2000.co.uk/newproject/op_amp.xls
or..
works down to 8v.. Just operating temp to look at now.
(See note on resistors for 9:1)
David
Thread Starter
Scooby Regular
Joined: Nov 2001
Posts: 15,239
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From: Leeds - It was 562.4bhp@28psi on Optimax, How much closer to 600 with race fuel and a bigger turbo?
just sorted board layout.. left on table for parental consent :d
off to bed.. brain hurts..
offset null, inverting null.. argh..
David
off to bed.. brain hurts..
offset null, inverting null.. argh..
David
Thread Starter
Scooby Regular
Joined: Nov 2001
Posts: 15,239
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From: Leeds - It was 562.4bhp@28psi on Optimax, How much closer to 600 with race fuel and a bigger turbo?
dunno if I posted these pics so...
time for motivation plan...

























edited loads of times.. Out of practice at this
[Edited by David_Wallis - 10/29/2003 6:12:29 PM]
[Edited by David_Wallis - 10/29/2003 6:13:25 PM]
[Edited by David_Wallis - 10/29/2003 6:14:50 PM]
time for motivation plan...

























edited loads of times.. Out of practice at this

[Edited by David_Wallis - 10/29/2003 6:12:29 PM]
[Edited by David_Wallis - 10/29/2003 6:13:25 PM]
[Edited by David_Wallis - 10/29/2003 6:14:50 PM]




































