[orangesupratt]

My supra seems to be missing every once in awhile at highboost. Its not very bad just maybe 1 spark here and there. It only happens on 3rd gear pulls. Im running a 1.3 bar on an SP66. I have new plugs in. The 4th cylinder has some oil on the theads. Others seem fine.

Compression reads
180 170 175 170 170 175

 

[Guest]

what is your spark plugs gap at? you might wanna take them down to .28

 

[bigmike]

check the gap. maybe bad coil pack?

 

[orangesupratt]

the gaps looked fine. They are brand new plugs. Ive got the HKS DLI Twin Power Ignition also could it just be the colpacks?

 

[DefconAdmin]

re

You most likely need new coil pack plugs or a new coil pack...The plugs look fine but the terminals on the wires need to be crimped down a bit. Replace the coil pack plugs while doing this. Hope this helps.