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Matt
Matt, Engineer
Category: Car
Satisfied Customers: 16722
Experience:  Honors degree in Mechanical Engineering, worked 8 years as a Formula 1 engine engineer.
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A 1995 Range Rover V8 4.6 HSEIt starts, runs..runs fine..revving..dies

Customer Question

Hi. I have a 1995 Range Rover V8 4.6 HSE
It starts, runs fine for a minute revving normally then dies. Then it wont start unless you leave it for 5 minutes.
I thought this was the fuel pressure but i have installed a new in tank pump and when it continued to do the same i linked it across the relay to get constant fuel rail pressure and it is still the same !
Any ideas ?
Submitted: 3 years ago.
Category: Car
Expert:  Matt replied 3 years ago.
Hello

from your description I'd say its too rich - not too lean so its clogging the plugs up - this could be verified by pulling out a spark plug just after its stalled and see if its wet with fuel / sooty black

If this is the case then try replacing the water temperature sensor on the inlet manifold - there may be two sensors you want to change the 1 with 2 wires as the other is for the gauge

let me know what you find
Customer: replied 3 years ago.
Hi, on other advice i started it, and immediately disconnected the Mass airflow meter and it runs near perfect so i suspect this and have ordered one.
Expert:  Matt replied 3 years ago.
Hello

Fair enough I'd also do a double check of the wiring and connection to the meter as its possible that the meter is OK but its connection to the ECU is not
Customer: replied 3 years ago.
Good s/h Air flow meter fitted and all the problems have ceased.
Expert:  Matt replied 3 years ago.
Glad you got it sorted

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