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intake manifold/ throttle body frustration; switching carburator to a TBI
Topic Started: Apr 20 2011, 03:31 AM (3,513 Views)
guitarranger11
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i posted a few days ago and peoples advice was awesome but i'm still confused. i bought this 1991 metro convertable with the standard 3 cylinder motor but the guy i bought it from put a carburator on a rebuilt motor. i bought a intake manifold with a throttle body on it from a guy who took it off a 1995 metro. well you can see the wiring on my metro has the clips which attach to fuel injection and when i goto napa or checkers then advance auto for a third opinion all the books and computers (for wherever their checking) states that all those metros where fuel injected. the throttle body has the throttle position sensor on it but i can't find a connector anywhere in the wiring harness on the car. my desperate question is, is a throttle body interchangable with were a fuel injection was since there isn't any thing on the wiring harness to support a throttle body or am i blind and missing any connectors to attach the throttle body. please help i'm in dire straits again each and everyone of you rock :rocker guitarranger11
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Memphis metro


How about some pictures of your wiring harness as well as your engine in the car as it is? I am not aware of any 91 with multiport injection myself.
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bogs
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Duct tape heals all wounds

Yah, I think pics would be most helpful at this point. From Jittney's postings of diagrams, this is what I think your setup would be -> 1989-1993 M,Intake Manifold & Throttle Body <-
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As EDG says, I didn't think they came with multiport (but I could be wrong).
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Woodie
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guitarranger11
Apr 20 2011, 03:31 AM
i bought this 1991 metro convertable with the standard 3 cylinder motor but the guy i bought it from put a carburator on a rebuilt motor. i bought a intake manifold with a throttle body on it from a guy who took it off a 1995 metro.
No chance of a carburetor or multi point. All GEO Metros have throttle body injection. That being said, it changed subtly from year to year, very unlikely that a 95 setup is going to work. There were 89-91 with EGR and without EGR, then there were 92-94 setups, all had EGR. 95 might be included in that second group or might be all by itself because everything changed again 96-00. Your convertible was built in Japan, so that also might be a difference.
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guitarranger11
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woodie is there anyway to make the 95 manifold work i have it installed on the car and alot of things match up but now when i crank it it doesnt seem to be getting any fuel to the throttle body. why is that and is there anything to do. my wife paid a $100.00 for this and will kill me if i don't get thgis intake/throttle body to work. the guy i got this from won't refund my money even though i advertised for a 1991 metro he assured me it was interchangable.please help i am desperate. thanks guitarranger11
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Good bye


Some JDM replacement engines come with carburetors. FYI. I would continue to look for the proper year range intake and TBI unit for your 91.
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