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Matt
Matt, Mechanical Engineer
Category: UK Car
Satisfied Customers: 20585
Experience:  BEng hons Mech engineering, in auto industry 22 years
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Got a 2004 traffic have fitted new EGR valve as it has loss

Customer Question

Got a 2004 traffic have fitted new EGR valve as it has loss of power was told that's what it is, still lose power, AA man found a broken wire on rail pressure sensor, p0193 and P1635 glow duration control, any ideas what's wrong, I do about a 1000 miles a week and no warning lights come on
Submitted: 1 year ago.
Category: UK Car
Expert:  Matt replied 1 year ago.
Hello
If its a turbo model then check the small vacuum lines to the turbo and its connected control solenoid on the bulkhead, any cracks or leaks can give turbo issues and its best to have the boost pressure measured actually measured with a boost gauge to check that the turbo is healthy and that the sensor is reading correctly
If its a variable vane turbo (they’ll be an actuator on the turbo body - but not a wastegate) then check its vacuum pipework as above and check the connections to the diaphragm / solenoid valve
Also worth checking that the glow-plug relay is switching off as they can stick on and leave the glow plugs also on - on some cars this can force it into limp home
Also worth considering adding a bottle of injector cleaner into the tank as a clogged injector nozzle will reduce power and give poor combustion - the next stage on from this is to remove all the injectors and have them ultrasonically cleaned and flow checked
Also check all the high pressure hoses post turbo/s for any split hoses or cracked metal pipes, also check the ends of the intercooler as its not unheard of to pop the end caps off under high boost.
Expert:  Matt replied 1 year ago.
Hi
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