Nissan consult3 diagnostic error? You Pay?

fritz

Situation #1 (at 2500 miles, 2 months from new):
"Car rescue" at dealership. Car starts with metallic noises but there's no
accelerator- to-throttles connection. It Idles (warm) at 1200 RPM.
Execution:
Show customer the diagnostics: DTC P1090 for VVEL ACTR MOT-B1 and a separate DTC P1093 for VVEL ACTR MOT B-2. Also a DTC P0300 for "all cylinders misfire".
Customer protests this was a wrong diagnosis. Techs get a good laugh.
Estimate is 2weeks (Customer home is 1000 miles away. He changes plans)

Customer checks dealership after 11 days. They're "awaiting parts"
At 15 days: customer collects car. It is written that it's warranty work but he has to pay. Nissan and original seller duck the warranty absolutely.
Part used. One relay. The old part is handed to the customer.

Upshot: Customer opens up the dud relay which reveals a normal, simple,
"M1" relay. Tested? One time in 2 it does not connect, or disconnects.
Confused? Repairer's tech folk are innocent....a place to recommend.

Consult3 Customer (unbelieving and desperate) buys one for (but not from) Nissan. It lives in the car, ready for use with his laptop.

Situation #2 (2450 miles later)
Car suddenly slowed and was nearly rammed by a too close truck.
Same old problem with slight metallic noises on starting.

Customer's own Consult3 shows the same readouts as in situation # 1 above.
1.Both VVEL ACTR Motors can hardly fail at the same time, surely?
2 The."Multi cyl misfire" DTC, (P0300), is wrong for a glass smooth motor.
3.Shop manual shows there's a listed DTC (P1091) for the VVEL relay but
the diagnostics do not show it up. Why not? Further, a VVEL relay failure
is stated in the manual to limit RPM to 3,500. Wrong.
4. That # 1 relay was an on/off Nissan type "M1". Oh so very special ? Niet.
5. Two more weeks without the car again ? On a non-paying warranty?
6. Grab the bull by the horns !

Upshot:
A relay, ex a junk-yard VW (year 1990), was fitted. The 370Z ran perfectly within hours (not weeks),....and still does so.
....The VW relay spec is as follows:
VW/Audi #s 191 937 503 22 204 007 12V 40A Made in Germany by WLO.
Dated 1/90, it is heavily marked "18" for Audi/VW relay box arrays.

Conclusion
"Diagnostics cannot be wrong --cannot be wrong--can never be wrong. etc.:
Nissan claims dept/customers may thus find extreme expense and delays.
Cause of the expense? Nissan Consult3 diagnostics?
.......Now, about that ignored warranty claim !