Matching the OBDII engine computer to the existing body systems is a
problem. On swaps like this, they should always use the original engine
computer if possible. Lighting issues may or not be related to the mismatch.
There is no electrical signal to release the key. He's got a mechanical
problem, possibly related to the mechanical gearshift linkage. It may
not have been adjusted correctly after the engine swap.
Changing the engine when all he needed was a head job was a mistake. The
"marginally greater cost" is now going to become a much greater cost.
George Richardson
Michael Porter wrote:
> I have a friend who now lives in central Florida who seems to have a
> helluva problem with his 1995 Pontiac Bonneville. He's called a few
> times in the last couple of weeks, wanting advice on what to do with
> the car. He had some coolant leakage into the crankcase, and after
> his local mechanic tried to solve the problem (and couldn't) the owner
> opted to buy a used engine and have his mechanic install it (because
> the cost was only marginally greater than having the heads pulled and
> shaved, etc.).
>
>
> The used engine is now installed (it's a 2004 V-6 engine installed in
> a 1995 Bonneville SSE), and he's suddenly having a bunch of electrical
> and operational problems. Can't get the ignition key removed (which
> might be mechanical, or might be the loss of an electrical signal from
> the brake system or the trans insuring the trans is in park); when he
> turns the lights on, and then off, the interior lights stay on. The
> check engine light is still on all the time (which I think is related
> to the original engine computer and harness being OBD1, or 1.5, and
> the replacement engine being OBD3), and he's kind of freaked about the
> problems. I can't really diagnose over the phone without knowing how
> the existing harness was mated up to the replacement engine, and
> without schematics.
>
> Does anyone know of a good independent electrical/engine computer shop
> in the Sebring, FL area that won't gouge him (he's trying to live on
> about $700/mo. in SS, so, he won't be able to avail himself of a
> top-flight shop charging premium rates). Yeah, the obvious answer
> would be to have the original shop doing the engine swap make it
> right, but, I think that shop has screwed things up enough that he
> doesn't trust it, and just wants it right without having to take out
> another home loan to do it. He's trying to get if fixed before he
> tries to take the car back to Michigan for the summer.
>
>
> Any suggestions, Floridians?
>
>
> Thanks.
>
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