Quantcast
Channel: Volvo Modifications
Viewing all articles
Browse latest Browse all 1287

Knock That Won't Go Away

$
0
0

Ive had knock since I can remember and I can't get rid of it, I have run out of ideas. Ive replaced everything I can think of. Injectors, 3 sets of spark plugs, Lambda sensor, Coil packs, inlet manifold, throttle body, Fuel pump, intake pipe. Ive tried cam timing at various setting, added fuel, reduced timing. Fuel pressure is correct, Compression is good. I'm well and truely baffled

 

This is my current VE table

afr-ve.jpg

 

 

With greens and 2.75" MAF I had no knock on 2 & 4 but 1, 3 & 5 had it

knock21-08-14.jpg

 

 

Just fitted a 3" intake and 3.25" MAF (1.94 conversion factor) and the knock is a little worse. I now have knock on 2,3,4 & 5


knockafter325maf.jpg

 

Here are a few tunerpro logs https://www.dropbox.com/s/6ipxuzs2cfwqke3/21-08-14.rar?dl=0


Viewing all articles
Browse latest Browse all 1287

Trending Articles