Quote:
Originally Posted by Krleenm
Hi newbie here looking to find out what the spec. Fuel pressure is for a 84 190E 2.3l I am showing 5.0 bar. I have found no specs. Online for this year. I am troubleshooting a KE jetronic issue, fuel pump intermittently shuts down. The fuel pump runs in start mode only. This seems to happen most in deceleration it will just quit. Any thoughts would be greatly appreciated.
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When the pump shuts down during deceleration, how do you determine the point of shut down? Does deceleration mean a 60-t0-40 MPH slow down, and then an attempt to return to 60 MPH, or does deceleration mean rolling to a stop? If the pump subsequently runs only while cranking the engine, how long is required to return to "normal" operation?
5.0 bar operating pressure is not unusually low for a single pump system.
The switch to two pumps brought an increase to ~ 6.3 bar.