please help me with more ideas to fix my pinging/detonation (gs430)
#1
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Location: GA
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please help me with more ideas to fix my pinging/detonation (gs430)
Have detonation in all gears at only high rpms. I had pinging when i was stock and now the same amount with the srt intake/ecu. Have tried seafoam in the intake manifold and gas tank, just changed spark plugs too. Only run 93 octane. Your insight would be appreciated.
#4
-check air filter
-double check the pinout for your wiring for the SRT/look for bad connections or shorts
-clean/test maf for replacement
-clean throttle body
-check/replace spark plugs
-check plug wires
-test coil voltage
-test injector voltage
-check fuel filter
-lucas gas treatment in next fillup
-extreme case: compression test
-check knock sensor
-check PCV
-check head gasket (leaking oil or oil in the spark plug chamber
-if ECU is not readable, your ECU may be going bad.
is it throwing any codes? if you do everything above there's no type of pinging in the world outside of having damaged internals that the above won't fix.
-double check the pinout for your wiring for the SRT/look for bad connections or shorts
-clean/test maf for replacement
-clean throttle body
-check/replace spark plugs
-check plug wires
-test coil voltage
-test injector voltage
-check fuel filter
-lucas gas treatment in next fillup
-extreme case: compression test
-check knock sensor
-check PCV
-check head gasket (leaking oil or oil in the spark plug chamber
-if ECU is not readable, your ECU may be going bad.
is it throwing any codes? if you do everything above there's no type of pinging in the world outside of having damaged internals that the above won't fix.
#7
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Just called dealership, $300.62 for new maf!!!!!! Where do you guys buy from? I have already cleaned the maf and no good. Thanks for all the input so far too.
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#10
without a CEL being thrown honestly i've got to think its the ECU possibly going bad.
bad maf, ignition stuff, you'd definitely be getting a CEL for a misfire on one or multiple cylinders.
i'd take it to autozone and have them hook up the scanner to it. Though there is no CEL coming on, there may be previous codes still in the ECU. If they can be read, have them clear it out and then drive the car home, reset the ecu (either the fuse or negative battery cable disconnect for like half an hour), then drive the car for a few days to see if anything comes up. If the ECU cannot be read after 2/3 attempts, your computer is gone (had this happen on my old 99 maxima, scanner i think said something like communication error or to that effect)
good luck
bad maf, ignition stuff, you'd definitely be getting a CEL for a misfire on one or multiple cylinders.
i'd take it to autozone and have them hook up the scanner to it. Though there is no CEL coming on, there may be previous codes still in the ECU. If they can be read, have them clear it out and then drive the car home, reset the ecu (either the fuse or negative battery cable disconnect for like half an hour), then drive the car for a few days to see if anything comes up. If the ECU cannot be read after 2/3 attempts, your computer is gone (had this happen on my old 99 maxima, scanner i think said something like communication error or to that effect)
good luck
#15
yeah ! i'll have to try cleaning my MAF cause when i dynoed my car it was pinging on the dyno! so im pretty sure the ecu was pulling some timing ! so i wonder how much my rwhp/tq will change after i fix the pinging problem !