What are the diffences bettween years (In Detail)

[Infinitiguy19]

Could some one please tell me the difference between 90-93 G50's please? Because I can only find little differences and "Q45tech" said that the only major difference is sodium filled exhaust valves.

[maxnix]

If you really care, read the early posts. You will discover some of the minor running differences being mentioned. Briefly, until 1993, most were minor or factory silent upgrades.

[Haitian_King]

Could some one please tell me the difference between 90-93 G50's please? Because I can only find little differences and "Q45tech" said that the only major difference is sodium filled exhaust valves.

I believe the major change in those model years was the addition of the first gear start TCU in the 1993 model.

I've been assured that the physical 1990 FSM I have will work with my 92 because there were no changes other than the TCU.

Now when 94 came around, lots of things changed. Then 96, they changed again.

[96Qowner]

No big difference in the 90-93s.

If you're asking about the difference between 90-93 and 94-95, that's another story. The fuel rails are different, CAS and a couple other connectors are different, injector connectors, too, I believe.

Here's an old thread covering the issue. See if bladeQ45's email still works.

zerothread?id=246269

[Haitian_King]

No big difference in the 90-93s.

If you're asking about the difference between 90-93 and 94-95, that's another story. The fuel rails are different, CAS and a couple other connectors are different, injector connectors, too, I believe.

Here's an old thread covering the issue. See if bladeQ45's email still works.

zerothread?id=246269

Very true. Not to mention the change to OBDII in 96.

If I recall correctly, the 94 and up Q's got new seats, a much nicer wood trim on the interior and added noise reduction features like thicker glass and a slightly slower steering ratio. These changes came as a result of complaints from consumers about the "lack" of luxury in the 90-93 models. I don't think the public was ready for the belt buckle either.

[96Qowner]

You also might consider asking the guys on the VH and VK Forum. They know a lot about the engine internals.

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