Should I Bother Changing CTS? Running Rich
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Should I Bother Changing CTS? Running Rich
Hi,
Been having a driveability prob. The starts, better when the air is cool, and engine cool. But after a minute, gets really rough. I currently am getting a code 53 (system overvoltage) and a maf code 33 since I have it disconnected . But when I drove it 2 miles I got a code 15 (low voltage at cts) and a code 21 (tps) as well as the 53 and 33. Got rid of the codes, start engine, idle it, not drive, get only code 53. So it seems like my main code is the 53, overvoltage, which will 'cause' the 15 if I drive it too far. My theory is that the 53 is due to a short somehere, and not enough , or any, voltage is getting to the cts, causing the rich running.
BTW i had the alt checked and it is a steady 14.9 on the store alt tester.
Any clues are welcomed. I've had this rich prob for a few weeks now. Replaced spark plugs. Didn't help. Checked cap and rotor, they look OK. Can't see any vacuum leaks anywhere. TPS is at .50
------------------
88 GTA 5.7 TPI Charcoal Grey Bone Stock except for loose muffler which makes it a bit louder
than normal.
Been having a driveability prob. The starts, better when the air is cool, and engine cool. But after a minute, gets really rough. I currently am getting a code 53 (system overvoltage) and a maf code 33 since I have it disconnected . But when I drove it 2 miles I got a code 15 (low voltage at cts) and a code 21 (tps) as well as the 53 and 33. Got rid of the codes, start engine, idle it, not drive, get only code 53. So it seems like my main code is the 53, overvoltage, which will 'cause' the 15 if I drive it too far. My theory is that the 53 is due to a short somehere, and not enough , or any, voltage is getting to the cts, causing the rich running.
BTW i had the alt checked and it is a steady 14.9 on the store alt tester.
Any clues are welcomed. I've had this rich prob for a few weeks now. Replaced spark plugs. Didn't help. Checked cap and rotor, they look OK. Can't see any vacuum leaks anywhere. TPS is at .50
------------------
88 GTA 5.7 TPI Charcoal Grey Bone Stock except for loose muffler which makes it a bit louder
than normal. 
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