Snibble,
I have read about the brand of fuel before and I have tried that, even though it's hard for me to believe that brand X will cause such a problem over brand Y premium gas. I tried shell but it made no difference. I usually buy premium at the local En-mark because they have 7 cent off per gallon on Tuesdays.
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You should check the current draw on the fuel pumps (there are two) and replace if too high -- don't know the spec off hand, but I believe it's been posted. Usually a bad fuel pump just gives up the ghost and you are completely dead, though.
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It's drawing 7.2 amps. I'll have to read up on that.
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A flaky OVP will cause all sorts of trouble, but intermittant stalling while driving that gets worse is either a bad fuel pump relay or a bad fuel pump. Relay is $60, replace it, don't mess about.
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I'm pretty sure that I replaced the relay early on, but not the OVP. There seemed to be some confusion about which relay worked the fuel pump. I may need to take another look at that to be sure.
I cleaned the idle control valve, but it didn't appear to be dirty. I couldn't figure out exactly how it works, so I don't know what about it needed to be clean. I also replaced both of the hoses.
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I presume you have changed the fuel filter.
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Yes I changed the filter and cut the old one open just to see if it had trash in it. It didn't.
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Please let me know if you find the solution. I love the ride of this car but it does make my blood pressure go up when it cuts off in heavy traffic. I don't want to die of road rage from the driver behind me when it won't start.
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If I ever find the problem I will definetely let you know and post my findings here.
I know what you mean. It's really bad when your dead in the road with someone behind you standing on the horn.

What's really bad is when it does it at night. If it would quit while at highway speed (it's rare for it to do that) it wouldn't be so bad because you could put it in neutral and coast to a convienient place side of the road out of everyones way.
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It can be successfully rebuilt if you are reasonably mechanically experienced (even though everyone warns you not to) for just a few dollars. It solved my problem. If you haven't already done so, spend about $18 and buy the Bosch Fuel Injection book which is stocked at the larger bookstores. It has detailed information and procedures.
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I have always thought that the CIS could be the problem but I know zip about it. I might have to get a book on it, if for nothing else but to learn how it works.
Thanks,
BMJR