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'89 Van RPM problem


tartukaru
10-04-2010, 03:22 AM
Hi,

Recently got a '89 Van that has a '83 - '84 engine in it. The problem is i can't pass the technical inspection in my country due to the fact that it won't hold at high RPM. I need it to go to at least 4000 and stay there, but it automatically throws the RPM back to like 1-2k. This is all happening at neutral not in gear.

All advice is much appreciated. Thanks

MT-2500
10-08-2010, 06:21 AM
Hi,

Recently got a '89 Van that has a '83 - '84 engine in it. The problem is i can't pass the technical inspection in my country due to the fact that it won't hold at high RPM. I need it to go to at least 4000 and stay there, but it automatically throws the RPM back to like 1-2k. This is all happening at neutral not in gear.

All advice is much appreciated. Thanks

Sorry I missed you post the last couple days.

Your country needs a change in that inspection law.
It is :screwy:
A lot of engines have a cut off on rpm at 3800 -4000 RPM.
It is built in the engine computer.

tartukaru
10-08-2010, 08:01 AM
Yeah, that's what i thought because my '95 Park Avenue won't hold it either, but it is limited a little higher I think so it passed with no problem. How do I explain to them however that it is just a built in safety feature to prevent detonation...

MT-2500
10-08-2010, 08:45 AM
It would be best to find a inspection station that has a inspector with a little common sense.

And hope he just over looks it.
Good Luck

tartukaru
10-08-2010, 04:15 PM
well it is all computerized here so he can't really do anything about it, and i live in Estonia so there aren't THAT many american cars here, mostly german and japanese/korean so yeah..kinda hard to find one.

MT-2500
10-08-2010, 04:48 PM
well it is all computerized here so he can't really do anything about it, and i live in Estonia so there aren't THAT many american cars here, mostly german and japanese/korean so yeah..kinda hard to find one.

I see your problem.
Actualy I have never found a rpm cut off built into a 84-89 gm van.
You might get a repair shop to chec kit out.
Could be something added on for a RPM sut down.
Good Luck.

tartukaru
10-09-2010, 02:03 AM
Yeah we are gonna have it looked at next week, hopefully just something with the RPM controller.

Thanks

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