Hey guys, my Z is acting up
Theres like misfiring going on and it feels like theres a big lack in power.The sparks plug are pretty new, only about 2 years old. The odd thing about it is that the car seems to misfire at certain times. sometimes it runs just fine and a minute later it running super slow and laggy. Whats the deal with that ?
Weird just thought ill ask you guys to see what you think
any help would be great.

 

Test your injectors - pull connectors off, read resistance across the leads. Should be 10-14 ohms.

Come back with results and we'll move on from there.

 

Pulled and tested all connectors all read about 14 . It just so odd that every now and then there's no misfire run fine like today. Drove it out on the morning it fine but now it misfiring again.

 

Found the issue, some of the connectors for the fuel injectors were bad. Had to replace 3 of them. The other three were good but a lot of corrosion, had those cleaned real good. Reattached the connectors and tested them reads at around 14 and now the car runs good as new. Actually a little better then before too.

 

Usually, misfiring is a result of bad injectors or bad injector/coil pack connectors. (For future reference.)

Glad you figured it out.

 

Hey guys, my Z been having misfires recently. It's comes and goes, I checked all the fuel injectors they work fine and connectors are new recently replaced. But I still get a little misfire once in a while. Any ideas on what I should do?

 

Merged with your previous Misfire thread....

 

All injectors tested and fuel injector connectors REPLACED. Still has misfiring, it was fine since the last time. I cleaned the sub harness for the PTU. I'm not sure what to do next.