I was looking at eBay for ISV for my 5-cyl '89 Audi 100. There are few, but the ones that look like the one I have in my car have BOSCH part no
0 280 140 512 and 0 280 140 516. They look exactly the same (on eBay photo).I looked at one in my Audi, but part No is not visible any more. Anyone knows what is the difference between these two BOSCH parts? Can I get 512 or 516?
Not convinced that sellers on eBay can provide exact information, and I would not want to buy wrong ISV.
As far as I know, some have two electrical connectors and some have three. That's probably the only thing you need to worry about.
Both part numbers show up in a Google search. You may want to plough through the links.
Nedavno Grizzly pise:
| On Mon, 28 Feb 2005 20:25:48 +0100, Yvan wrote: | | >I was looking at eBay for ISV for my 5-cyl '89 Audi 100. There are | >few, but the ones that look like the one I have in my car have BOSCH | >part no 0 280 140 512 and 0 280 140 516. They look exactly the same | >(on eBay photo). | >
| >I looked at one in my Audi, but part No is not visible any more. | >Anyone knows what is the difference between these two BOSCH parts? | >Can I get 512 or 516?
| As far as I know, some have two electrical connectors and some have | three. That's probably the only thing you need to worry about.
Both 512 and 516 have two pin electrical connectors. And on photo both look exactly the same. I was thinking if there is some difference mechanically or electronically.
| Both part numbers show up in a Google search. You may want to plough | through the links.
I did, but I could find no difference.
As long as it has two electrical connectors, it should be fine - they're not exactly rocket science. I've got a few of them myself - I'll have a look at the part numbers for you.
BTW have you tried cleaning out the one you've got?
Nedavno Grizzly pise:
| As long as it has two electrical connectors, it should be fine - | they're not exactly rocket science. I've got a few of them myself - | I'll have a look at the part numbers for you.
| BTW have you tried cleaning out the one you've got?
Yes I did. Actually I am not sure that ISV is my problem. It's a long story. I have dual fuel petrol - LPG powered Audi 100 and idle problem (stalling) both when on petrol and LPG, only when on LPG it is more noticeable.
I checked hoses for any vacuum leak, and couldn't find any. So I solved my problem (kind of) by cutting a wire from ISV to fuel injection control unit (under right side kick panel), and connecting it to rear fog light switch. Now I can start with ISV on, and for a few minutes engine runs on higher rpm idle. When engine gets warmer, I hit the switch, disconnect ISV, and engine will not stall.
Interesting thing is that engine when warmer that 50 deg Celsius runs fine without ISV connected. Am I right then to assume that I have no vacuum leaks?
There are some used ISV-s on eBay that are not expensive, so I was thinking of buying one and see if ISV is my problem.
I couldn't really say for sure. One thing I have noticed with these
5-cylinder engines (particularly the earlier ones, i.e. up to 1988 or so) is that a poor connection at the temperature sensors (near the thermostat) will give the same kind of stalling problems that you mention.A used ISV may be no better than what you already have.
Having said that, I couldn't read the numbers on either of mine either.
Nedavno Grizzly pise:
| >As long as it has two electrical connectors, it should be fine - | >they're not exactly rocket science. I've got a few of them myself - | >I'll have a look at the part numbers for you. | | Having said that, I couldn't read the numbers on either of mine | either.
I looked a little closer at my ISV, and it looks like last three digits are 512. So you think I should do fine with 516 (two pin electrical connector as 512 is). Will keep looking at eBay... Maybe something will pop-up.
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