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hard start

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Old Apr 13, 2021 | 07:22 PM
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richpron
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1989 560 SEC
hard start
I have a hard start problem after letting the car sit. I noticed that there is no fuel pressure to the injectors but there is fuel pressure to be cold start valve. The injectors are new and the fuel distributor was rebuilt by CIS flow tech.The fuel distributor holds pressure overnight and I'm wondering why there is no fuel to the injectors after letting it sit
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Old Aug 19, 2021 | 05:23 PM
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1990 w126 300SE (EU) & 1989 560SEL (US Spec)
Originally Posted by richpron
I have a hard start problem after letting the car sit. I noticed that there is no fuel pressure to the injectors but there is fuel pressure to be cold start valve. The injectors are new and the fuel distributor was rebuilt by CIS flow tech.The fuel distributor holds pressure overnight and I'm wondering why there is no fuel to the injectors after letting it sit
you may have already spent some money and solved the problem. But, you need to start from the back. Fuel pumps, filter, FUEL PRESSURE ACCUMULATOR, then if you say I have 3 bar pressure, then remove and check cold start injector. MAke sure the ECU works fine to send a signal....If you already solved it, what was it?
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