97 F150 4.6 Codes P1151, P0115, P0141, P0155

Runs good got 105K on it Replaced EGR & O2 upstream and these are the codes I have now.

When changing the EGR the pipe off the back of the EGR seems to be damged at the other end don't know what its called or where to get a new one and would this cause probs like this.

I think shes running too lean.

In Reading I see MAF (what & where is it) might need to be cleaned. I thought I might try some Injector cleaner tomorrow.

Any help would be great my inspection is almost out!

http://www.alldata.com or a mnual will tell you where the MAF is located, so will a mechanic! Might be your best bet if you have an inspection comung due!

Thanks
I got some injector cleaner and am also gonna clean the MAF tonight (I found it)

Do Ya think that is what all those codes are about?

Hope I'm on the right track can't really afford to take it to a shop.

it's possible, so are the intake gaskets as well though!

okay yeah i guess the intake is next on the list to check out!

Thansk again!