Editing Fuel Injector Replacement (section)

==Road-test and troubleshooting:==

Now take the car for a road-test and see how it feels on the road under load. Make sure power delivery is smooth and no misfiring occurring. Bring the car back, and inspect the injectors for leaks at the o-ring and the injector itself. Double check all connections and hoses for vacuum and coolant leaks. Make sure your throttle cable is adjusted and tight. 

You're now complete.

If you encounter misfiring problems, think about what you've removed and changed and try and eliminate items. I did a set of injectors once, and whilst I seated all 7 manifold bolts, I hadn't tightened them. The car ran like crap and barely idled. Tightened the bolts up and it was fine. If you didn't label the injectors and you have a miss, consider you maybe put them on wrong. 

Misfires can also be caused by bumping or pulling on spark plug leads whilst working on the injectors.

Comments:
* This may be a good opportunity to tie in a few other service items on your car such as a new fuel filter. Spark plugs, as you will have easier access to them with the manifold split. A cooling system flush & refill / bleed. Repairing connectors or replacing broken ones with new push clip style connectors.
* Always use rubber grease instead of petroleum jelly like Vaseline.
* Use high quality fuel hose in repairs and don't take a cheap way out on this.
* Take the time to be clean and neat. Keep wiring tidy and use cable ties where you can to neaten wiring.
* Look out for loose nuts and bolts related to your work or otherwise and tighten everything accordingly
* Whilst you have the throttle body off with the top manifold, give it a clean out with throttle body clean or degreaser to freshen it up a bit and improve your idle.
* Check your sensors such as Engine Coolant Temp for corrosion on the pins in the connections. Corrosion can affect readings and signals from sensors and impact on engine running and economy. Use contact cleaner and remove corrosion where you can.
* Check for rusting cooling pipes like this:

[[Image:Injectorchange22.jpg|640px|center|link=]]

Repair and monitor these conditions where you can.



Hopefully this guide is helpful to you. 


- '''Trustpower'''


[[Category:Electrical]]
[[Category:Engine]]
[[Category:RB30E]]