Everything was on the bench throughly cleaned or replaced, passed the miss it runs like a sports car it hammers along.
Printable View
Everything was on the bench throughly cleaned or replaced, passed the miss it runs like a sports car it hammers along.
It runs well once you pass the point of the missing, still runs like s@$# between 1800/2100 rpm.
Have heard of the temp sensor under the thermostat causing engine running issues. Do you know when it was last replaced?
Ok so once the engine revs passed the miss it's good.
You sound like you have a very similar problem as I do.
First I replaced the standard type spark plugs with Iridium plugs 1 range colder of course.
that made a big difference to idle problem.
Mind you I've tuned sons car perfectly on std type plugs.
Don't think plugs are the real problem, but something that is wanting as an connected underlying issue.
Currently looking at coil feed voltage.
remember reading that can be an issue.
maybe see this, may give you some ideas.
voltage.http://www.nissanpatrol.com.au/forum...b42-coil-power
Well our regular mechanic took it for a run today and without hesitation he said its a lean mixture seems electric symptoms but definitely lean mixture so out with injectors tomorrow. Fitted a new coil yesterday made the starting a lot better 1st turn and vrrrooooom.
Does it have a miss on LPG also? If it does then cleaning the injectors isn't going to fix your issue. Have you replaced the coolant temp sensor? Sounds insignificant, but when one of these gives up the ghost, it will wreak havoc on the electricals.
The lpg is lean but we know that and will be sorted Friday coolant sensor is good its been tested, although not sure of the thermostat.
Faulty o2 sensor maybe?.
Sensor is new, injectors being removed cleaned and checked.
Might just pay to go around all the chassie earth connections and clean em up.
possibly even add an extra earth strap back to battery from a good solid spot like starter motor Mt bolt.
not necessarily a fix, but a smoother engine is usually the result.
It appears there is corrosion in the fuel injectors, fuel injector expert tried a standard clean but too heavily contaminated, so he has taken them away for a more intense work over. Reason for this donor vehicle running old fuel from standing around.
Possibily cheeper to replace the injectors in the long run. After water ingress the fuel system will never be the same until you replace injectors and high pressure pump.
Hey pezzer, check these out.
http://www.fuelinjector.citymaker.co...01/5376382.htm
Might be cheaper than getting them cleaned. I've bought off them before, highly recommended.
Edit, for your information, the tb42e injector part number is JS21-1. I think the oem number is 16600-86G00. If you search the Internet, you can come across some great deals. Don't bother buying new ones off eBay or from nissan. They are expensive!
Cheers Parksy, see what happens tomorrow.
Miss fife now gone but running lean checked fuel pressure all good but delivery of fuel is low, new pump to be fitted.
Did you end up with new injectors?
No the specialist said apart from some stubborn crap they were not that old and that they were firing perfectly. However there was flow issue so on pulling the fuel pump out we found some debris had gone through a split in the strainer and damaged the pump.
Finally car all sorted all the above inclusive of a faulty MAF sensor, so much torque now it lifts the front wheels on take off. Hopefully a good weekend for putting the boat in the water.
Happy days pezzer! Glad you got it sorted.