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Path: utzoo!watmath!clyde!cbosgd!ihnp4!houxm!hou2e!geopi
From: geopi@hou2e.UUCP (G.COTSONAS)
Newsgroups: net.auto
Subject: Help needed with Omni, please
Message-ID: <784@hou2e.UUCP>
Date: Fri, 3-Jan-86 09:17:28 EST
Article-I.D.: hou2e.784
Posted: Fri Jan  3 09:17:28 1986
Date-Received: Sat, 4-Jan-86 05:07:21 EST
Organization: AT&T Bell Labs, Holmdel NJ
Lines: 30

Car:
	1981 Omni 1.7 liter, 39,000 miles
Problems:
	Engine misses severely, very severely;
	gets up to highway speed, but only with much coaxing.
	Especially pronounced under any load or acceleration.

	Friend, who is automotive guru, worked on ignition system.
	I now have good plugs, wires, rotor, cap.
	Claim is that ignition is performing well now, though we haven't had
	access to a diagnostic analyzer;
	one plug did seem to indicate lean condition.
	Condition of spark control computer is anybody's guess...
	Car runs as poorly as before, or worse.

	Friend (aforementioned guru) suspects carb now.
	A complication is in that my exhaust system
	came apart at the catalytic converter,
	and it is now patched, but not welded up yet.

Questions:

Is a carb overhaul in order?
Could the problem be with spark advance, or computer control?
Could backpressure problems related to the exhaust affect performance
	so severely?

I realize that this information is skimpy, and diagnosis over the net
uncertain, but would appreciate any wisdom about the Omni which
you could share.  I have had it six months, with all too little reliability.