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Starts, then stalls immediately? 140-160 1974

posted by  uniberp on  Wed Jul 6 11:16 CST 2005
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last visit: Mon Jan 31 07:08 CST 2011
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Turn the key on, then unplug the airflow sensor (under the air intake) You will hear the pump buzz and the pressure come up in the fuel lines.
If not, maybe you have a balky pump.

If the pump has lots of pressure (70psi I think), and it starts then stalls immediately, it's almost certainly the CPR. (AKA "Warm-up regulator")

http://shop.auto-parts-zone.com/volvo-140-fuel_injection-c4020_20670oes.html
Yours looks like this? Then it's been upgraded already and is easy to replace.

The CPR's tend to fail at max pressure, (clogged) meaning the engine runs lean and stumbles badly until it warms up.

It can be disassembled and cleaned in a super clean shop, but it will save you a lot of fussing just to replace/upgrade. The internals aof a high pressure regulator are no fun.

CPR's aren't cheap. Look around lots.


--
MPergiel, Elmhurst, IL '74 145e T-5 'Orange Alert'






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New Plastic fuel line from fuel pump check valve to fuel accumulator (K-jet) [140-160][1974]
posted by  TedR  on Tue Jul 5 11:57 CST 2005 >


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