Member - Matt Mu (Perth-WA) posted:

Biodiesel?? I would hate to see the quality of fuel that has been used in the previous 75000km if using biodiesel could dislodge enough crud and buildup to stall it??

We all know of the fantastic cleaning properties of commercial biodiesel but I cant imagine that there would be sufficient crud in the system yet....maybe 200000km!

Mat

Gerhardp1 posted:

Try reading the forum - plenty of people have had problems after using biodiesel.

There could easily be plenty of crud in the system. It only takes one fill of junk fuel.

So try a positive suggestion or don't bother posting.

Member - Matt Mu (Perth-WA) posted:

Ive done the research even worked alongside dealerships to prove that there is no detremental effects when using commercial biodiesel. In response to customers having warranty repairs declinded and then later approved!! Why dont YOU read for yourself and not rely on third hand info on a forum!

So buddy I do know my facts but if in case you are ill-informed and refferring to home made biodiesel...well yes there can be some effects at the unpredicatability of the processing.

Not so with commercial biodiesel there are more stringent regulations on it than there are on standard diesel.

Now for the crud side of things....The biodiesel has superb cleaning properties and if you had an old engine that had alot of 'gumming' in the fule lines etc these can dislodge in the first few tanks using bio. So you need to be aware and look at an early fuel filter change. Thats it!!

The crud you pick up in a dodgy fuel load will fill and block anyones filters and its pretty much immediately as the posted said happened to him. This has NOTHING to do with biodiesel.

Well I do know my facts and Im very happy to share if someone is willing to listen to POSITIVE feedback! So how about you try being factual in your responses and not listening to your mates, mates, mate of a girlfriend you met in a pub once 30 yearsa ago!!! or dont bother posting!

zabble posted:

sorry, forgot to mention that the problem occurs at whatever the level of fuel in the tank, max or low.

120scruiser (NSW) posted:

I would start with the wiring connection.
When the ECU throws up a fault code, in your case TPS, it means it is in the TPS circuit and not necesarily the actual switch. It is possibly the switch but could be a bad connection.
I would be looking at the MAF sensor as well. It doesn't take much to unplug, inspect and replug. Sometimes we fix faults in my workshop by doing this as it is only a bad connection. Mostly on older systems though.
The MAF sensors do give problems in the Nissans.
Hope this helps
120scruiser