hi all, i understand the primeras runs the same QR20DE engine, i have replaced my crank sensor, but looks like a chain issue, currently looking for a good website link for chain replacement, any pointers or views greatly appreaited.

 

Can't find much either on the web only this one

https://www.justanswer.com/uk-nissan/33dj8-set-timing-nissan-qr20de.html

Have you established that the chain has slipped ?

Well ... its currently bad news, after i replaced the crank sensor the car went fine - then P0335 pops up gain - so a full chain kit including VVT gear was ordered, yep take a look at ebay prices ..... so after paying £460+ for chain replacing ..... about 50mile later the light is back on - code P0335 crank position, which leaves 2 options now - as suspecting there is nothing wrong with any of the chain timing gear and the thoughts are - Either my crank sensor went deffective, the wiring loom that feeds the sensor is damaged somewhere and finally its the camshaft sensor and not the crank sensor.

So its back at the garage to have a 2nd new crank sensor & its 1st new cam shaft sensor fitted and see how we go.

 

That's bad news but on the upside...at least the camchain is now replaced and less likely to just fail in service so peace of mind there.

If the cam sensor is faulty then this can flag a code but equally if the chain has any slack in it still then this also could be a likely cause