error codes in '02 GT

cobra1923 · 01-09-2006, 12:02 PM

over the weekend I put in the UPR catted X pipe and some underdrive pullies (they were the piggyback ones... I know.. but that's all my wife would let me get with my allowance). Anyway, I'm throwing codes 0300; 0316; 0301 and 0302. All are misfire? I clear them and they come right back.
0300 is misfire detected at startup (under 1000 RPM)
0316 is random misfire detected
0301 misfire in cylinder 1
0302 misfire in cylinder 2

The car runs great and I can't feel a misfire. Could the pulley / balancer combination be out of balance enough to read like a misfire to the ECU?

Also, I removed the timing adj at the same time and put the magnetic pickup back in the block. Any thoughts or tests I could try?

jacliff_3521 · 01-09-2006, 05:21 PM

check your ckp sensor. put your adjuster back on and clear see if it comes back

cobra1923 · 01-09-2006, 07:32 PM

what is the ckp sensor?

cobra1923 · 01-11-2006, 04:55 AM

I looked it up last night.. It's the CranKshaft Position sensor

01-09-2006, 12:02 PM	#1 (permalink)
cobra1923 Senior Member Join Date: Nov 2004 Location: Baltimore Posts: 581	error codes in '02 GT over the weekend I put in the UPR catted X pipe and some underdrive pullies (they were the piggyback ones... I know.. but that's all my wife would let me get with my allowance). Anyway, I'm throwing codes 0300; 0316; 0301 and 0302. All are misfire? I clear them and they come right back. 0300 is misfire detected at startup (under 1000 RPM) 0316 is random misfire detected 0301 misfire in cylinder 1 0302 misfire in cylinder 2 The car runs great and I can't feel a misfire. Could the pulley / balancer combination be out of balance enough to read like a misfire to the ECU? Also, I removed the timing adj at the same time and put the magnetic pickup back in the block. Any thoughts or tests I could try?

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01-09-2006, 05:21 PM	#2 (permalink)
jacliff_3521 Senior Member Join Date: Feb 2005 Location: North Port FL. Posts: 156	check your ckp sensor. put your adjuster back on and clear see if it comes back

01-09-2006, 07:32 PM	#3 (permalink)
cobra1923 Senior Member Join Date: Nov 2004 Location: Baltimore Posts: 581	what is the ckp sensor?

01-11-2006, 04:55 AM	#4 (permalink)
cobra1923 Senior Member Join Date: Nov 2004 Location: Baltimore Posts: 581	I looked it up last night.. It's the CranKshaft Position sensor