Date: 15 Feb 2000 07:38:02 -0600
From: Tom McTighe <>
Subject: Injection woes with a 1990 900 Base Model

If anyone has an opinion on what might be causing my problem(s), I'd be most grateful to hear it. I have a 1990 900 base model with close to 200k miles on it. I've had it since new and plan to drive it until it falls apart around me; it's by far the best SAAB I've had of the seven 95, 96, 97, 99 and two 900's I've owned in the last 25 years. The car is stock in all aspects except for a MSS header and rear pipe assembly. This has been on the car for a good while prior to any negative behavior being noticed. It has developed some serious injection (I'm thinking) problems lately: very hard starting followed by a considerable puff of black smoke from excess fuel or an excessively unbalanced air/fuel ratio...once started, the idle (at rest and warm) cycles from normal to about 1,100 rpm and then down to a near-stall rate and then to normal and so on. Then, after being stopped for even short periods (red lights, eg), on takeoff, the engine feels flooded and congested until I can get the revs up in second gear. Stop and go traffic is now beyond irritating...Until recently, fuel consumption remained pretty steady at an average 27 mpg in mostly city conditions. I've noticed it drop off in the last two tanks of gas (Amoco 93 consistently). Thanks in advance for any help you might offer. Tom McTighe Sullivan's Island, SC

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