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Strange Problem With My R33 Gtr

Deziner
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Deziner Mentor

Deziner

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I had this happen last spring a couple of times and then it just stopped; it has now started again.

Basically as I am driving (whether just starting in 1st or 2nd or cruising in 4th or 5th) the car starts to stop, then surge, stop, surge etc.

It feels like there is a complete loss of power to the engine, but there isn't because it is still running. I.e. if I pull over it is idling fine. Occasionally the 4WD light comes on when this happens, but not all the time.

When this happened last year I thought maybe dirty AFM's or dirty fuel. I initially thought AFM's as there was a heap of pollen around the first time it started happening. But this wouldn't account for the 4WD light I don't think.

Maybe an electrical issue with the ATTESSA?

It's odd though because I can still have my foot in the same position on the accelerator and power cuts, then surges back on.

Any thoughts?

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Deziner Mentor

Deziner

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when it surges does the torque guage for the front wheels move?

Not sure, will have to look at it when it happens next. Normally when it starts I am focused on not hitting the car in front of me when it surges or the car behind me running into me!

a20089 Veteran

a20089

Posted
Posted

I had this happen last spring a couple of times and then it just stopped; it has now started again.

Basically as I am driving (whether just starting in 1st or 2nd or cruising in 4th or 5th) the car starts to stop, then surge, stop, surge etc.

It feels like there is a complete loss of power to the engine, but there isn't because it is still running. I.e. if I pull over it is idling fine. Occasionally the 4WD light comes on when this happens, but not all the time.

If you have not already done so, swap out your AFM's, I have some spare. The 4wd light may be coming on as the engine is not powering the electrical system correctly.

Deziner Mentor

Deziner

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If you have not already done so, swap out your AFM's, I have some spare. The 4wd light may be coming on as the engine is not powering the electrical system correctly.

I have not swapped the AFM's and quite likely they are still the originals. How much are AFM's?

Got a Pulsar Grand Master

Got a Pulsar

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Sounds just like when my CAS was giving out on my 94 Bluebird.

Does it happen when cold or hot or in between?

Sometimes it would cut and surge, ignition lights would come on then go off as ignition kicked in again and then drive fine.

Sometimes it would still idle, other times it would stall and not want to start for a couple of minutes.

Always at around the same distance from home.

Replaced it and all was good.

Deziner Mentor

Deziner

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Sounds just like when my CAS was giving out on my 94 Bluebird.

Does it happen when cold or hot or in between?

Sometimes it would cut and surge, ignition lights would come on then go off as ignition kicked in again and then drive fine.

Sometimes it would still idle, other times it would stall and not want to start for a couple of minutes.

Always at around the same distance from home.

Replaced it and all was good.

Can happen at anytime really, whether hot, cold or in between.

Nothing ever happens to the lights, except the 4WD light sometimes comes on as a result and stays on until I turn the car off and back on.

It never stalls and always starts fine.

Its like the engine keeps running but there is no accelerator response (if that makes any ense?). So the engine does not stall or shut off etc. It is like even though I have my foot on the gas it just goes to idol.

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