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Discussion Starter #1
so my deville with 70k starts acting up on drive home from work Saturday. Its running pretty damn rough and seems to only smooth out while doing 60mph. where should i start? i checked front plugs (replaced all about 20k ago), all sensors, egr, etc. should i pull off the injectors one by one?
 

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1997 Eldorado, 2003 Audi RS6
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1,320 Posts
Did you replace your wires too? What year Deville? Could be crank position sensor, oxygen sensor, MAF, EGR. If it is that rough, you will get a Service Engine light soon. Read the code.
 

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White Diamond '03 DHS (with DTS floor shift)
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86,987 Posts
Injectors are the last thing I would suspect. I'd concentrate on the plugs, coils and ICM connectors.
 
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