1990 Mazda RX7 wont stay running

1990 MAZDA RX7
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PUPUPUPUTTER
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Engine Performance problem
1990 Mazda RX7 Two Wheel Drive Manual 150000 miles
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i have a 1990 rx7 convertible it will start up but wont stay running i have so far found that it doesnt feel like their is any vacuum going to the choke but have checked all hoses no leaks their is what looks like a throttle controlled vacuum cylinder and it feels like the line is froze but the car will stay running if i hold starter on can you help or tell me what i can narrow ir down to or tell me where i can get a vacuum hoses routing guide so i can make sure they are all ran right anything would be helpful thanks
Jun 30, 2008 at 7:48 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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RASMATAZ
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Check the bypass air control valve and the throttle position sensor and also check fuel pressure
Jun 30, 2008 at 7:59 PM
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KHLOW2008
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Check the ignition switch.
Jul 1, 2008 at 11:59 AM