Hi all!
My 3200GT is acting up a bit so I'm trying to work out what is wrong, and hope you guys are willing to have a quick look at my errors =)
My woes started with intermittently going into Limp Mode; I wouldn't be able to get it over 120kph even if the wind were right. This problem went away for a while after I had flushed the oil (it was a few months after I had bought it, and figured that even though the previous owner was knowledgeable, I figured it couldn't hurt.)
Now however it's back with a vengeance, and it comes combined with rev issues. I had that before once, but was able to fix that with the throttle reset trick. Now, I've tried that several times but no cigar. The car sometimes goes into limp mode, but on the other hand sometimes it keeps trying to rev up to 3-4k (it varies, sometimes it wants to rev far higher than other times, which lead me to suspect electronics.)
I have bought and hooked up an ODB reader and read out the error codes. Here's what showed up:
P0150, 02 Sensor Circuit Malfunction (Bank 2 sensor 1)
P0110, Intake air temperature circuit malfunction
P0325, Knock Sensor 1 Circuit Malfunction (Bank 1 or single sensor)
P0330, Knock Sensor 2 Circuit Malfunction (Bank 2)
P0352, Ignition Coil B Primary/Secondary Circuit Malfunction
P0354, Ignition Coil D Primary/Secondary Circuit Malfunction
P0355, Ignition Coil E Primary/Secondary Circuit Malfunction
P0356, Ignition Coil F Primary/Secondary Circuit Malfunction
0x1172 Unknown code (googled it and found it is related to the Lambda Sensor?)
P0225, Throttle/Petal Position Sensor/Switch C Circuit Malfunction
Note that the engine idles and runs fine when it's not in limp mode or in one of its "bad rev" phases - no misfires, fine idling (though it does seem to "breathe", i.e. slight ups/downs idling, but as I understand it that's normal).
Also, the previous owner replaced the throttle with a wireless version so that "shouldn't" (famous last words, but I have the invoice
) be the issue.
Finally, I must shamefully admit to having hitherto used standard supermarket fuel. I thought I had read up sufficiently, but apparently not. After leafing through the forums I'm already convinced. I'll swap to V-Power or similar.
Now my amateur sleuthing skills have me seeing primarily electrical problems here. Am I guessing correctly that the primary suspects are the lambda sensors, and secondary are wiring or something? Or should I look at the sparkies / coils first?
Thank you for your time =)
regards, McAnix