When cold, '91 N/A acts like it misses after 4k RPM.

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06-26-02, 11:39 AM

#26

banzaitoyota

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Sniper, Any progree on this yet. Now you have me curious. John

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06-27-02, 09:59 AM

#27

banzaitoyota

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Inquiring minds want to know!

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06-27-02, 10:21 AM

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Mark S

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Did you check the secondary throttle butterflies? If I remember correctly, they stay partially closed when the engine is cold.

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06-27-02, 10:29 AM

#29

blu_gxl

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ok i'm having the same problem, this weekend i'm going to try to solder in a new transistor for my idle circuit and see if that helps. but, on mine the part throttle when warm is crappy too so mine might not be the same.

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06-27-02, 11:50 PM

#30

Sniper_X

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I am working on this, but the car is having a nose job right now.

Its only when the ECu reverts to internal fuel maps at 4K

So maybe a secondary injector is opting out.