My car a 1987 300zx turbo 2+2 with 90,000 km kept in garage rarely driven suddenly in idle started to shake and smell some gas, in driving the engine stops shaking but runs rough. Can you help what the problem may be? thanks in advanse.
It could be a couple of things. I first guess is to check the fuel filter. If it has not been changed out within 15-25,000 miles deposits that within the gas tank has restricted the flow and will cause a hesitation or very rough idle. Now the desposit could have surface close to the injectors restricting the flow. Second, tune-up ( distributor cap and button, spark plugs, wires, etc). Third, check all you fuel hoses leading (especially leading from the fuel filter) to and from the engine.If they have never been changed, I would do so. Hope this a start of resolving your problem.
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