DW200 issues
05-18-2019, 06:47 AM
#1
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DW200 issues
Recently there has been a lot of discussion in here for DW200 pump failures.
What's the consensus on these failures? Is that a common thing? I already have a (slightly used) DW200 that came with my KW Rotrex kit than I planned on installing (since the OEM one has 120k miles now) but I am now having second thoughts.
Data points from other DW200 users will be appreciated!
Data points from other DW200 users will be appreciated!
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05-18-2019, 08:55 AM
#4
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I ran out of fuel due to original OEM pump getting weak (1999). Replaced it with a DW100 from Amazon in March 2017. In March 2018, I ran out of fuel in same area, so I replaced the DW100 with a DW200 from Trackspeed. Now I am having to run it for 2 seconds, then repeat key cycle, in order to get a proper Priming Pulse. Still plenty of fuel up top, even though I am running more boost this year, but a larger flow pump.
Running stock wiring and relay.
Running stock wiring and relay.
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05-18-2019, 09:13 AM
#5
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IIRC Andy replaced filter and pump at the same time without thoroughly troubleshooting. Could have simply been a filter blockage.
I'm just under a year and about 7k miles on my dw200 with no issues.
I'm just under a year and about 7k miles on my dw200 with no issues.
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05-18-2019, 01:24 PM
#6
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I pulled the fuel filter first when I did my pump install and it was definitely not blocked. You could still blow through it just fine. Granted I didn't cut it in half, or just do the filter and take a drive afterwards to see if things changed. But the likliehood of the filter bring the issue is very low.
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05-28-2019, 07:28 PM
#9
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So, with the 1 yr old DW200, I had to go through a full 2 second prime cycle, and there was a sound at the tank like air bubbles. Then I could go back to OFF, and then to start for a good start cycle.
This is a video after I put in the Walbro 190 HP. This is with 0.300 prime delay (like I used to do) and the key goes directly from OFF to START:
I am also a little rich up top with the 190 HP, but mostly my issue was with spin-up, and it has been solved with the new pump.
This is a video after I put in the Walbro 190 HP. This is with 0.300 prime delay (like I used to do) and the key goes directly from OFF to START:
I am also a little rich up top with the 190 HP, but mostly my issue was with spin-up, and it has been solved with the new pump.
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05-28-2019, 07:39 PM
#10
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the key goes directly from OFF to START:
Very impressive start by the way!
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05-28-2019, 08:06 PM
#11
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Yes, it is possible.
I know it is common to wait, but if the goal is "just like OEM" then OFF to START is the goal.
I use a fairly heavy Priming Pulse. That is what allows the car to start quickly. I don't wait for the Starting Pulse to wet the intake walls.
Regarding not waiting for the prime to end: During the crank, there is enough time for a 0.3 second delay and then the Priming Pulse to occur by the time everything syncs and the normal fuel and spark begin (that takes half to 1 second, IIRC).
This is pump gas. I am not sure one can get as quick a start with E85.
I admit that I have probably spent way too much time on starting.
DNM
I know it is common to wait, but if the goal is "just like OEM" then OFF to START is the goal.
I use a fairly heavy Priming Pulse. That is what allows the car to start quickly. I don't wait for the Starting Pulse to wet the intake walls.
Regarding not waiting for the prime to end: During the crank, there is enough time for a 0.3 second delay and then the Priming Pulse to occur by the time everything syncs and the normal fuel and spark begin (that takes half to 1 second, IIRC).
This is pump gas. I am not sure one can get as quick a start with E85.
I admit that I have probably spent way too much time on starting.
DNM
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this sucks, I just finished putting one into my car and had to remove the roll bar to get access. In for more success stories??
05-30-2019, 10:37 AM
#18
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Indeed. Go to various forums, Honda, Subie, etc, and some love Walbro, some love Deatschwerks. Not much info on AEM.
I suppose the ideal would be a Mazda (or other OEM) drop-in replacement with more flow. But then, we would be spending $350 instead of $100; which means most of us would not buy it anyway.
I suppose the ideal would be a Mazda (or other OEM) drop-in replacement with more flow. But then, we would be spending $350 instead of $100; which means most of us would not buy it anyway.
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01-01-2023, 12:57 AM
#20
Dredging this one up, so it doesn’t become a Supertech Valvestem seal caper, where everyone thinks it’s just them.
NB1, Returnless. DW200 died this week. 18 months, just under 5000 miles. Was installed June ‘21, same time as a Trackspeed dedicated FP wire/relay kit. I wrapped it in the same foam noise isolator my original Walbro 255 came with. No continuity across the terminals. Going back to Walbro. I forgot how loud it was!
NB1, Returnless. DW200 died this week. 18 months, just under 5000 miles. Was installed June ‘21, same time as a Trackspeed dedicated FP wire/relay kit. I wrapped it in the same foam noise isolator my original Walbro 255 came with. No continuity across the terminals. Going back to Walbro. I forgot how loud it was!
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