misserable chevy blazer 2003 4.3 vortex
#1
New Member
Thread Starter
Join Date: Jan 2011
Posts: 2

have a problem getting any power idles perfect 60 lbs at fuel rail replaced
MFA sensor,fuel filter and a new fuel spider assemble and I still get the same thing also is there a way to read codes by the check engine lite don't have money for code reader
MFA sensor,fuel filter and a new fuel spider assemble and I still get the same thing also is there a way to read codes by the check engine lite don't have money for code reader
#2
Senior Member
Join Date: Apr 2010
Location: Nebraska
Posts: 752

Most parts stores can check it for you. If not they usually rent them.
#3
Might be time for a new cat, though get the code(s) read first.
#4
New Member
Join Date: Jan 2011
Posts: 2

try unplugging your mass air flow sensor - the engine will kick into a default mode without the sensor and if it runs better without it then have yours tested.
worked like a charm for me - mine had no power above 45 mph, valves rattleing at 3500 rpms, transmission acted like it was shot - wouldn't downshift right.
worked like a charm for me - mine had no power above 45 mph, valves rattleing at 3500 rpms, transmission acted like it was shot - wouldn't downshift right.
#5
New Member
Thread Starter
Join Date: Jan 2011
Posts: 2

try unplugging your mass air flow sensor - the engine will kick into a default mode without the sensor and if it runs better without it then have yours tested.
worked like a charm for me - mine had no power above 45 mph, valves rattleing at 3500 rpms, transmission acted like it was shot - wouldn't downshift right.
worked like a charm for me - mine had no power above 45 mph, valves rattleing at 3500 rpms, transmission acted like it was shot - wouldn't downshift right.
I all ready put a new one in iam thinking its the catalic converter
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