land rover freelander td4 boost problem/ air flow meter

Need help on td4 2001
Has very low power
Cleaned and blocked egr
New fuel filter
New air filter
Now have these error.codes!!
Po100 air flow meter
P1e30 boost system performance, short circuit to v batt, positive controller deviation

are these codes connected or two diffirent faults
any help would be great as new to owning land rover
cheers daniel

Searching on P0100 in the Freelander forum shows up loads of hit. Searching on P1E30 throw up quite a few hits when searched on. Might be worth a look to see

https://www.landyzone.co.uk/search/2377386/?q=P1E30&o=relevance&c[node]=9
https://www.landyzone.co.uk/search/2377386/?q=P1E30&o=relevance&c[node]=9
I just read the following thread to its conclusion...

https://www.landyzone.co.uk/land-rover/help-what-did-i-do.300807/page-4#post-3758536

@Rocky Ward had those 2 errors, plus a couple more also electrical related, but if you read to the conclusion of that thread, it turned out to be a combination of the HP fuel pump regulator not sealing correctly (common issue) and a faulty injector (also pretty common). I think the faults cleared after installing the regulator rebuild kit - however, he was also complaining that his code reader wasn't performing well. He found dismantling the regulator a pain, but I'm sure I remember people saying its not a to bad job.

I don't think the fuel pump and injectors are probably the first places you'd look when getting those codes, but worth bearing in mind. They are both common issues on TD4s over 100k miles.

ok tried cleaning the air flow meter today agin with no result and thinkjing about it i think my fuel pump under the bonnet is leaking the tiniest bit so think im going to bite the bullet and buy them both not that expensive and pretty sure i could fit it all my self thanks for help
dan

try the sensor at the end of the intake (drives side in uk) but you have to take the intake off to get at it