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Code Reading

Ours does lol. Go to the menu then go to either e50 or e51 technical section
 
Does the Elgrand have an ODBC II or similar connection?
 
it's all covered in the link earlier in this thread. Quick answer is yes but no, the link will explain everything.
 
Thanks Karl
 
Does the Elgrand have an ODBC II or similar connection?
Firstly its OBDC as in on board diagnostic connector and the answer is NO & YES respectively

Neither the E50 or E51 are OBDII compliant. The E51 has the same connector as used by vehicles that are compliant though but uses a communications protocol called Nissan Consult 2.

As recommended by @spuddyo , follow the link to get further info.
 
Taking my Elle for diagnostics tomorrow, local garage wouldn't touch it. Had random engine management light appear one morning.. car drove fine before. Now it won't go over 2k revs. 🤔
 
Taking my Elle for diagnostics tomorrow, local garage wouldn't touch it. Had random engine management light appear one morning.. car drove fine before. Now it won't go over 2k revs. 🤔
Ooer, good luck with he garage checkup - hope it's not too painful.

It would be very useful no know (either in this thread or better still, a separate thread) as to what the issue is as we can all learn from others experiences.
 
Ooer, good luck with he garage checkup - hope it's not too painful.

It would be very useful no know (either in this thread or better still, a separate thread) as to what the issue is as we can all learn from others experiences.
Will do, I'll keep you posted. Apparently there is only 1 specialist in Bristol that will be able to look at it.
 
Just got back from DTM, diagnostic specialist, the faults they found are as follows:
1 Investigate EML on plug into system
2 find P1610 lock mode P1614 chain immu key
3 P0102 mass air flow/circuit
4 P0103 and P0113 intake air temp fault.

So looks like I need a new mass air flow sensor. Best place to find one?
 
This is just a quick response regarding codes P 0103 qnd P 0113 in that the MAF and IAT (Intake Air Thermomenter) are contained within the same unit so I'm wondering if the problem is the connector/cabling rather than the MAF and IAT?

It's a pity that you don't have a simple code reader to hand (probably half the price of one hour at the garage) - I seem to recall that the MAF/IAT codes 'latch in' - in other words, if you disconnected the MAF/IAT, the EML stays on even if plugged back in (am I right on this - anyone?).

Anyway, @Stempyuno has just replaced his MAF so maybe he can tell you where to get one. If not @BMR likely knows about these or a 'used' one from @stevemen - both advertise in the trade section on this forum.
 
This is just a quick response regarding codes P 0103 qnd P 0113 in that the MAF and IAT (Intake Air Thermomenter) are contained within the same unit so I'm wondering if the problem is the connector/cabling rather than the MAF and IAT?

It's a pity that you don't have a simple code reader to hand (probably half the price of one hour at the garage) - I seem to recall that the MAF/IAT codes 'latch in' - in other words, if you disconnected the MAF/IAT, the EML stays on even if plugged back in (am I right on this - anyone?).

Anyway, @Stempyuno has just replaced his MAF so maybe he can tell you where to get one. If not @BMR likely knows about these or a 'used' one from @stevemen - both advertise in the trade section on this forum.
Yes, if you unplug the MAF you will end up with MAF and IAT codes. Plugging it back in does not clear the codes, this has to be done via the diagnostics. I obtained my MAF from Jap Auto Spares. It's a cheapo pattern part but works at least. I don't think I would bother with a used one.

If the MAF is duff the engine will stall when you clear the codes. This is because with the MAF out of circuit the engine will run in limp mode as a get you home remedy, where the engine is restricted to 2000 rpm. When you clear the codes the MAF is brought back on line and if it is duff the engine won't run.
 
Just got back from DTM, diagnostic specialist, the faults they found are as follows:
1 Investigate EML on plug into system
2 find P1610 lock mode P1614 chain immu key
3 P0102 mass air flow/circuit
4 P0103 and P0113 intake air temp fault.

So looks like I need a new mass air flow sensor. Best place to find one?
Further to my earlier post, P1610 and P1614 are to do with the NATS (as in Nissan Anti Theft System) whereby the ignition key is interrogated by the vehicle system as part of the security check. The most likely cause of this is the ignition key battery needs replacing. If it's not that, then the problem s within the NATS and for that I have no useful suggestions.

Also, I'm wondering if the P1610/P1614 were historical codes from an earlier 'event' (such as flat key battery?) and are now clear. What else did your garage say?

Again, if you had a simple code reader, you'd now this.
 
If the MAF is duff the engine will stall when you clear the codes. This is because with the MAF out of circuit the engine will run in limp mode as a get you home remedy, where the engine is restricted to 2000 rpm. When you clear the codes the MAF is brought back on line and if it is duff the engine won't run.
I agree... but it's worth saying that MAF's can be duff in various ways and there are plenty ways in which a MAF can be duff but the engine still run.

Also, I'd rather fit a good second hand proper spec MAF than a new improper spec MAF. It may be unlikely that a new 'pattern' MAF isn't the right spec but if it isn't the right spec it can cause lots of problems. A proper spec new MAF would obviously be an ideal replacement but probably more expensive than the other options.

Slightly different subject but on 350Z forums lots of owners are under the impression that VQ35's 'run hot' because their electric cooling fans are running fast all the time... They don't really run hot lol, the real situation is that a common part to fail is the engine coolant temp sensor so owners often replace the ECT sensor with a pattern part, the pattern part ECT sensors owners have been buying are incorrect spec and fool the engine ECU into reading a higher engine temp than actual temp thus the ECU turns on the electric radiator cooling fan. I converted a Nissan Stagea with VQ35 for a member of this forum, this car also had the cooling fans running all the time issue, the owner had just had the ECT sensor replaced before bringing it to me for LPG conversion so thought it was the LPG conversion that had caused the fan problem. I found out about the other owners with the same problem whilst researching his issue and it was me who identified the real problem on a wide range of cars fitted with VQ35's, I then told owners on the respective forums and debunked the 'running hot' misunderstandings. The LPG systems have their own ECT in the form of the reducer temp sensor, so I could easily compare the two ECT readings - the pattern part ECT sensors were reading about 101degC when the LPG ECT was only reading 80degC :cool:

There are a great many BMWs driving around with incorrect spec MAFs suffering poor drive-ability as a consequence, that's because owners either buy new incorrect spec pattern MAFs or go to a scrapyard and buy a second hand MAF from another model BMW which looks identical to their MAF but isn't the same spec.
 
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Well guys, I read what you write 🤓, I really like to learn 😇, but it's high for me 😂
 
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