vr v6 comprestion test + missing

[v6-surf]

hey guys,
ive just done a compresion test on my vr v6. 1,2,3,and 4 cylenders read 145 psi. and 5 and 6 read 150,
is this a problem?

also it seems to be missing on cylender two(we think its cylender two becuase we disconected theinjector and it didnt make a differences) , its getting spark
seams to be getting fuel aswel?

and if posible would some one be able to tell me the fireing order.
cheers, Jase

[Brett_jjj]

The minimum PSI for that engine is around 100 PSI or 690 kpa and should have a pressure difference between cylinders of no more than 30%. Yours sounds like its ok.The firing order is 165432.
Id be checking the 3 coils,these are known for causing misfiring,they break down under load.Ive seen them show to be ok when tested with a multimeter and still cause misfiring.Borrow a coil from an engine that is running ok,and try it in each of the 3 places where yours are.The cylinder numbers on them dont matter,the coils are all the same.

[v6-surf]

Thanks for that.
is there anything in the line before the coils that could cause a misfire?
The engine wiring is a bit dodgey, the engien was planted in the toyota surf before i braught it.
Cheers jase

[neet_wagon]

Check the IAC in the throttle body to see if its 'gunked-up'.
This will cause the car to behave poorly.
Check to see if the vacuum hoses to the MAP sensor are in good condition, this hose was causing a bloke at works V6 gemini to sound like it was missing, runs fine now.