2004 V70R having problems with chiptuning
Hello my name is Alf & I`m new on this forum. Was hoping to see if anyone here might have some experience regarding these issues.
I have a 2004 V70R AWD (manual transmission)which I`m having some troubles with after chiptuning it.
The problem is that it seems to go to lean. It performs like this both on midrange rpm & up towards top. It cuts totally and falls a sleep. Adding no power at all.
I`ve tried several programs from two different Chip manufacturers, it`s all the same.
When I remove the chip, the car runs like it should, and has 305 hp tested in bench.
I also have 3" exhaust from front to back.
I`m starting to wonder if it could be the petrol pressure regulator? I`ve understood from a mechanic that on this car this is not vacuum-controlled, but electronic. Is there anyone who has had problems like this?
Would appreciate any answers or tips.
Best regards
Alf, Norway
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