no compression help
 

Hello all I took my car to the garage to have a vf23 turbo bigger injectors and bigger intercooler they fitted all the parts fine but it was hard to start thay finally got it Going and left it running for a little while then turned it off then turn it back on and had a misfire in cylinder 4 they compression tested it and it had low compression in cylinder for possible valve seats that are burnt is this going to be an expensive fix? I know the head might need a reskimming or is it worth just buying a second hand engine

Check your timing first before doing anything

1st question really should be what was it like before the work was carried out ? seems odd if all was fine before hand then poof, no compression !?!?!?

Had the cam belt done 6 mouths ago seemed ok then about 3 months a go it felt like I was holding back a bit had it rolling roaded and it was down 50 hp ish .this was be for all the up grades my guess us that some thing was in the way out

Did they remap when all these parts were fitted?, seems very strange its just lost compression after it was all fitted.

It wasn't taken for a test drive unmapped was it ?

no it's been mapped be for but not with the new bits filled .it wasent road tested but was left running for a bit

I has been moved around the garage ect and parked

as farjay said, id check the timing.