Where is the fuel pressure regulator on my C70 convertible?

[PNuT]

Originally Posted by Baffler

My money's on the antenna ring connections...they're in fashion this month

immobiliser should fire then stall..... although ME7 may differ ?

[Dusty Miller]

Turns out the OBD scanner came up with no engine revolution data. Engine check light has never been on. Replaced crankshaft sensor. Engine started but two miles later it stopped suddenly. OBD said the same thing again. So replaced camshaft sensor. Car started but cut out after a few mins. Local garage suspects connections between sensors and ECU or the ECU. They can do no more and suggest I go to a specialist. That means £50 to get the car transported there and £83 + VAT initial diagnostic check plus any repair costs. Tempted to just get the ECU tested off the car rather than spend more money to find the real problem. It's a nightmare for a car worth less than £2K but what a great car.

[Baffler]

Pick up a can of contact cleaner (£5), clean both male and female connections of the immobiliser antenna ring, located around the ignition barrel, and work the connections a few times to form a good connection.

If you have a multimeter to hand test for continuity of the antenna winding.

[CNGBiFuel]

immobiliser should fire then stall..... although ME7 may differ ?

I confirm ME7 is the same.


These faults are a pain. Keep going...
Yes, it's a £2K car, and £2K on a good day. But if it costs £700 to sort and doubt it will, you're still ahead. Many pay that in HP/lease and have a car they've got to give back. You're not snivelling, whilst pretending to be the big "I am". No finance company rams you up the jacksy! My money says 'yours is yours' and paid for.


Better still, if you spend a weekend going over everyhting methodically, and waste a few quid changing parts you didn't need to change, so what? No matter, you'll get there, and know more for next time. You'll probably find it's a £30 part. But it may cost you £150 in parts /tools to establish that. So? Fine.

Better than earning it.

One £20 can of Deoxit is a wonder to behold.

If you play this right, you own a car you can run for next to b*gger all.

[turboboy]

Originally Posted by CNGBiFuel

These faults are a pain. Keep going...
Yes, it's a £2K car, and £2K on a good day. But if it costs £700 to sort and doubt it will, you're still ahead. Many pay that in HP/lease and have a car they've got to give back. You're not snivelling, whilst pretending to be the big "I am". No finance company rams you up the jacksy! My money says 'yours is yours' and paid for.


Better still, if you spend a weekend going over everyhting methodically, and waste a few quid changing parts you didn't need to change, so what? No matter, you'll get there, and know more for next time. You'll probably find it's a £30 part. But it may cost you £150 in parts /tools to establish that. So? Fine.

Better than earning it.

One £20 can of Deoxit is a wonder to behold.

If you play this right, you own a car you can run for next to b*gger all.

I'm with you all the way on this. Why throw money at a car you will never own or throw money away on a car that will devalue as soon as the sun rises tomorrow.

Older cars have character and I doubt if both of mine would be worth £1K together, but I like to know that I can walk out the door, jump in either of them and drive anywhere and back without the worry of not completing the journey.

[Dusty Miller]

Thank you for all the advice and suggestions as to what was wrong with my C70. Did everything suggested and yes, changed parts I now know I didn't need to to change (though replacing the original 16 year old fuel pump is probably worthwhile). So I spent more than £200 sorting a fault which was down to a part costing £20! The problem turned out to be the new crankshaft sensor. The new one fitted was faulty and obviously not giving the ECU an accurate reading when the engine was up to temp, hence the engine cut out after 10 mins running but restarted when cold. Someone on another forum in the US was insistent I looked again at the crankshaft sensor as they said it was the only part in the chain which could be so heat sensitive and that they are prone to being faulty when new. Popped another on and hey presto the engine didn't cut out when hot and now immediately restarts when hot. What a relief after weeks of desperate head scratching trying to work out what was wrong and heading towards ever more unnecessary work.

[ITSv40]

Out of interest was the sensor genuine or pattern? Poor show if genuine. Glad it is sorted 👍

[CNGBiFuel]

Originally Posted by Dusty Miller

Thank you for all the advice and suggestions as to what was wrong with my C70. Did everything suggested and yes, changed parts I now know I didn't need to to change (though replacing the original 16 year old fuel pump is probably worthwhile). So I spent more than £200 sorting a fault which was down to a part costing £20! The problem turned out to be the new crankshaft sensor. The new one fitted was faulty and obviously not giving the ECU an accurate reading when the engine was up to temp, hence the engine cut out after 10 mins running but restarted when cold. Someone on another forum in the US was insistent I looked again at the crankshaft sensor as they said it was the only part in the chain which could be so heat sensitive and that they are prone to being faulty when new. Popped another on and hey presto the engine didn't cut out when hot and now immediately restarts when hot. What a relief after weeks of desperate head scratching trying to work out what was wrong and heading towards ever more unnecessary work.

Yes, that's it right there. You paid £180 over the odds on parts you didn't need. This becuase you lack the experience to do things any other way. But have you really? I say not. I'm sure it was a right ar*e to do. Not remotely fun. Only now it's done.

In the greater scheme of things, you're wiser, the car is worth naff-all but it's yours. £200 is nuthin' ..... B*gger all. You're not grovelling around trying to impress people you don't even like, whilst licking some finance companie's ar*e-crack.

I'm sure it was 'trying' - only now you've got yourself a lorry-load of self-worth.

Then again you could....

throw money away on a car that will devalue as soon as the sun rises tomorrow.

Well done.

[SteveSarre]

Hi all,

Glad that the problem is sorted.

In my experience, when you start to look into this sort of problem, you look, locate and learn about a lot of different components that you didn't even know existed:
immobiliser, ecu, boost valve, FPR, MAF sensor, coolant temperature sensor, crank position sensor etc etc

And you start to learn how the whole system works.

You are forced to trace vacuum hoses and wires and connections all over the place.

Then hopefully you find the culprit.

After you have spent that time and effort, then next time there is a problem you will be in a much better position to diagnose it (systematically).

Certainly for me that process (particularly when I eventually succeed) is what I enjoy.
I would much rather spend the time and learn, than simply pay a garage (who you have to to hope has done the right thing).

Steve

[CNGBiFuel]

Agreed. Forced into it 3-4 years back I bought a smoke-test kit minded to a suspect vacuum leak. Turned out to be a waste of money, there was no vacuum-leak. £50-60 trashed. Kind-of... it did put me on the right road.

Only since then I've used it 4-5 times on all sorts of things, - not always car related - and yes, on one occasion it found a vacuum leak. And I use it because having the 'thing' I can. Thus it eliminates many false positives in diagnosis.

OK, it didn't feel like it at the time, but right now, I can say I've more than had my money's worth. In the finish, decent tools always pay.