80 series 4.5 petrol FZJ80, 1FZ-FE intermittent power loss. (1 Viewer)

[BigBro]

I have been reading a few threads about this issue, My Engine does not seem to have and EGR or any Oxygen sensors to be seen. It is driving me crazy.
I have changed my plugs, petrol filter and Air filter.
I have also noticed it is running very Rich even when the engine is warm, sometimes it sounds as if it is pinking/ pinging.
On a good day, it has power to burn. Other times it is reluctant to change back and has very little power when it does so.

 

[bajaphile]

Have you verified that your check engine light illuminates when starting the vehicle? Have you checked for codes?

Does the AUS spec 80's usually come with EGR and/or Oxygen sensors?

 

[gummycarbs]

it is reluctant to change back

What do you mean?

 

[HAAANK]

Some have had power loss and found succes with cleaning and packing the NSS barrel connector with dielectric grease. Worth a shot

 

[allan man]

Clean the MAF and throttle body...Replace O2 sensor...

 

[BigBro]

What do you mean?

Sorry, My Automatic gearbox

 

[FJP971]

Shift cable? Check the timing too.

 

[OLD DAWG]

Fuel pressure?

 

[BigBro]

Have you verified that your check engine light illuminates when starting the vehicle? Have you checked for codes?

Does the AUS spec 80's usually come with EGR and/or Oxygen sensors?

 

[BigBro]

Well, it seems I repositioned the Maf cable harness, the revs dropped down and now has butt loads of power and acceleration. I'll be stripping the shrinkwrap and checking the wires, they at close to the Exhaust manifold.

 

[BigBro]

Well, it seems I repositioned the Maf cable harness, the revs dropped down and now has butt loads of power and acceleration. I'll be stripping the shrinkwrap and checking the wires, they at close to the Exhaust manifold.

 

[BigBro]

Clean the MAF and throttle body...Replace O2 sensor...

It has no oxygen sensor

 

[BigBro]

Some have had power loss and found succes with cleaning and packing the NSS barrel connector with dielectric grease. Worth a shot

What is the NSS barrel and where can I find it?

 

[Tedward]

Neutral Safety Switch electrical barrel connector.
It's roughly located below your pesky heater hose.

 

[BigBro]

Oh, that sounds like fun. I'll check it tomorrow. I may even try all of the plugs I can see with that grease , I suppose it couldn't hurt. My engine is running very rich also. So I'll try the above suggestions too.

 

[BigBro]

Yes engine light does illuminate, that is why I am confused about this problem.

 

[HAAANK]

Oh, that sounds like fun. I'll check it tomorrow. I may even try all of the plugs I can see with that grease , I suppose it couldn't hurt. My engine is running very rich also. So I'll try the above suggestions too.

Your electrical connections will thank you