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Re: 98 tahoe MAF sensor?
Things to check.
Fuel pressure up to par.
60/66 lbs pressure.
Good Hot spark out of coil.
Camshaft retard setting as close to 0 degrees - or + as you can get it.
If losing spark make sure coil has good hot blue spark at coil.
Check or switch plug wires.
Install a AC delco cap and rotor.
Clear codes and see if any come back.
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Remember proper testing gives us the answer to many problems.
MT
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