Differential pressure regulator?
Thread Starter
Audiworld Junior Member
Joined: Jun 2006
Posts: 40
Likes: 0
What's the problem with my car?
Ok, here's the problem: My car will start and idle. But when it drives it can suddenly lose speed. Sometime it could come back by switching gears (doesn't matter which one), most cases it would drop dead. Turn off the key and restart it, no problem for a little while, then it will repeat again.
Recently replaced fuel pump (there's no fuel coming into engine once, car would not start) and ignition switch, no help. My friend told me that there might be something wrong with the gas regulator which connected to the computer. The only thing on the manual with a wire is the differential pressure regulator, and I did have gas sipping problem before, but it self sealed later.
Now, after reading so many threads about DPR, I have a couple questions:
1) Is DPR the problem? Sounds most likely to me.
2) It looks easy to just swap one. But is there anything need to be careful about?
3) Some say DPRs from different models are interchangeable. Is it true? So I can just grab any DPR (1987-1991) and replace it? It's hard to find exact model of my car (1988 Audi 90, no quattro) in our local junk yards
4) If buy new, is there any place selling it for less than $200?
Thanks
Recently replaced fuel pump (there's no fuel coming into engine once, car would not start) and ignition switch, no help. My friend told me that there might be something wrong with the gas regulator which connected to the computer. The only thing on the manual with a wire is the differential pressure regulator, and I did have gas sipping problem before, but it self sealed later.
Now, after reading so many threads about DPR, I have a couple questions:
1) Is DPR the problem? Sounds most likely to me.
2) It looks easy to just swap one. But is there anything need to be careful about?
3) Some say DPRs from different models are interchangeable. Is it true? So I can just grab any DPR (1987-1991) and replace it? It's hard to find exact model of my car (1988 Audi 90, no quattro) in our local junk yards
4) If buy new, is there any place selling it for less than $200?
Thanks
Last edited by audi901988; Mar 14, 2010 at 12:29 PM.
Thread Starter
Audiworld Junior Member
Joined: Jun 2006
Posts: 40
Likes: 0
Not the DPR
I just replaced the DPR, took the car out for a ride and the engine shut down tree times. I'm going to send this part back and get a fuel pressure regulator instead. Dammmm I really wish I know what is wrong with my audi.
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