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C4 - Hydraulic Boost Pump Runs Too Long????

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Old 10-22-2011, 03:12 PM
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Pak_37
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Originally Posted by Indycam
51 ?
If you really got 51 then it's not the bomb .
We did get 51 pumps following your test protocol. When the car is running the pump comes on every one or two brake depressions. The pump cycles for a few seconds.

New issue. We've just taken the car for a test run. As we were parking at the grocery store we got the full Christmas tree affect. We just did a re-solder of the clock in July. We re considering changing the coils. Any thoughts?
Old 10-23-2011, 05:39 PM
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ome911
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It's a 36 mm socket- only machined a few cms from the end to allow the wall to slip between the pressure switch and the pump.
Old 10-23-2011, 08:58 PM
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Originally Posted by ome911
It's a 36 mm socket- only machined a few cms from the end to allow the wall to slip between the pressure switch and the pump.
Thanks Enzo -- it looks good.
Old 10-23-2011, 09:02 PM
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Default C4 - Hydraulic Boost Pump Runs Too Long???? UPDATE

We changed the coils today and all the issues we've been having with the lights - anti-lock and PDAS plus the ! and the warning buzzer have now stopped.

We're going to change the relays next as there sounds to be a loose part in one of them when we took it out and shook it.

We'll keep you posted on our progress.



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