Tech 2 and boost

[sarah1331]

Hi am sorry for pestering you but I have done everything can boost be altered with tech 2

I did head gasket and now it boosts at 2500-3000 rpm it used to boost around 1800 rpm

I replaced intake manifold
Swirl flap actuator
Egr stuff a few month ago all was perfect I just did head gasket last week as precaution

I checked selinoid
Vac pump
And replaced vac lines

Vectra c 1.9 cdti z19dth


Thank you

[pecky]

I'm not aware of any setting in Tech2 for boost, it's not anything I've ever looked for.

Engines aren't my expertise so I can't offer any more suggestions myself.

[domtorredo]

2500-3000rpm is fully normal for oem engine if you want to get boost on lower rpm you need a remap and its not a tech2 job

[sarah1331]

2500-3000rpm is fully normal for oem engine if you want to get boost on lower rpm you need a remap and its not a tech2 job

It was around 2200 for full boost and I could feel turbo at 1800 now I don't feel a thing until 2700 then it takes off like a rocket

[domtorredo]

have anyone worked on ecu replaced it, flashed or updated?
if you compare head gaskets were they same thickness?
have you any tool available to check boost pressure and trouble codes if yes check it make log and post it

[sarah1331]

have anyone worked on ecu replaced it, flashed or updated?
if you compare head gaskets were they same thickness?
have you any tool available to check boost pressure and trouble codes if yes check it make log and post it

Deffo correct head gasket I did it myself am a plant fitter by trade

Nobody touched ecu at all I have opcom no codes at all even after 100 mile I'll see if I can check boost preasure if I can find it in opcom

Thank you for your replies

[sarah1331]

Having problems with my injector fuel lines leaking as soon as I replace them I'll update

[iulian1971]

Hi.
After you repair your injectors, have a look at the diesel particle filter and check the boost pressure valve.

[sarah1331]

have anyone worked on ecu replaced it, flashed or updated?
if you compare head gaskets were they same thickness?
have you any tool available to check boost pressure and trouble codes if yes check it make log and post it

Boost pressure command 104kpa
Boost pressure 98kpa
Boost pressure 1.58v



Than test

[domtorredo]

Well if I see correctly 1st image is at idle and 2nd at around 1400rpm is that correct?
Have you done this - EGR cleaned, check boost pressure sensor next to egr can be dirty, and a maf
Is yours fitted with dpf?


Did a check on mates Vectra at 1488rpm egr should be at around 35-45%
Boost pressure 106kpa
boost pressure 1.70V

sure every car is different but readings should be close