Lt1 sputtering at 4 rpm
12-03-2012, 01:31 AM
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Lt1 sputtering at 4 rpm Hey guys my 94 formula is acting up on me. Don't know what it is hoping its not the opti, maybe just a bad o2 sensor. So what happened is the check engine light popped on a couple weeks ago (i was standing at a light) and the Rpm started dropping real low like the car wanted to stall out and 5 seconds later check engine goes away and car runs fine. Up until bout week ago when I'm WOT and hit 4-4.5 rpm the cars sputters and won't go above that.usually in 1st and 2nd gear. And check engine light pops up again and goes away almost instantly. If I gradually increase rpms to 4-4.5 no sputtering.
12-03-2012, 06:47 PM
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The first think I would do is have the code pulled.
If I remember correctly a 94 won't flash codes. You'll need an obd1 code reader.
If you can't do that then the usual comes to mind - Spark plugs, wires, maybe o2 sensors, opti.
If I remember correctly a 94 won't flash codes. You'll need an obd1 code reader.
If you can't do that then the usual comes to mind - Spark plugs, wires, maybe o2 sensors, opti.
12-03-2012, 07:02 PM
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Well the code isn't on now, but spark plugs are good, getting. The car back tommorow will hopefully get the o2 sensors checked, thanks for the info.