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Bogging accelerator 200

posted by  ricko on  Thu Feb 1 09:05 CST 2007
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last visit: Thu Aug 21 08:31 CST 2014
[RELATED]

Wife's 1989 240 wagon, 130000 miles rusted thru side of exhaust downpipe. Replaced exhaust down pipe, brought to muffler shop (friend of mine) he welded a new pipe from down pipe to catalytic, with new hole for O2 sensor. Picked up car check engine light is on. Pulled code 221, faulty signal to and /or from AMM.
The car starts and runs fine for about 3 minutes. If you step on the gas, big hesitation, finally kicks in and backfires. It gets progressively worse and finally stalls.
Tried cleaning AMM contacts, replaced AMM with appropriate different spares- no change. Jiggled AMM harness while running- no change. Checked FAQS, changed out cap , rotor, wires, plugs, suppression relay, fuel pump relay, computers X 3, flywheel sensor, ignition amplifier.
Still getting code 221. Any thoughts and advice greatly appreciated.






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