My aurora did the same thing, and I did replace the secondary air injection unit, mine has the 4.0 v-8 and the location of the one I changed is near firewall in the middle above the valve cover/coil over unit. see if the vacuum line popped off or melted that's what mine did, and exhaust was escaping did cause veh to perform poorly, and couldn't get but about 65 mph tops on the interstate. changed the rear one and problem solved. however it could be caused by a plugged catalytic converter which could cause the air injection to go bad. I took my catalytic converter off and cleaned/knocked it out. but depending on your local codes if your county requires the emission testing you would need to replace the catalytic converter. Luckily my county does not.
SOURCE: 95 aurora wont start
did check engine light come on? if so have codes checked there are many things that could cause this issue, cam sensor, could be one issue
SOURCE: 2001 oldsmobile intrigue secondary air injection
motor has probly failed-n hav it inspected n electrically tested-a repair manual is very helpful-may want to do code scan to confirm
Testimonial: "emission wiz info helpful, i am trying to locate a wiring diagram at this time any suggestions also air motor works fine with jumper wire from positiv"
SOURCE: 1998 Oldsmobile Cutlass, While driving
Hi. This issue has several causes, but the oil light indicator is a strong sign of low pressure in the engine. This will cause the engine lubrication rate to drop, thus, producing a illuminated oil light, and erratic Oil pressure readings. The necessary actions are to have a manual oil pressure test ran on this engine, asap. When running a manual oil pressure test, you will discover if the true oil pressure is low, or normal. If the test proves that the oil pressure is, indeed, low, this will confirm that the Oil pump is suspect.
Now, if the true readings given during the manual oil pressure test are indicating that the pressure is normal, this will be the result of a failed sending unit(oil pressure switch). Although the oil pressure is suspect, this is not your only issue here. There seems to be a abnormal compression rate, present. This is causing the rough idle, and erratic RPMs. I recommend to administer a engine block compression test, as well. This test will discover if , indeed, there are issues within the cylinder heads, and block structure, such as a worn head gasket, cylinder wall issues, and cracked block. Normally, these issue will send signs, like white, or gray smoke out the tail pipe, or discolored oil. It will, also, promote erratic RPM ratings, and a rough idle. Have the oil pressure test, and engine block compression test ran, asap.
Once the test are administered, you will be able to isolate the actual problem areas, more accurately. Check the spark plug wire sets, and ignition assembly for faults, also.
Testimonial: "Great Feedback, Best yet!! I have other questions tho but it wont let me reply back to you. What kind of discolored oil? "
SOURCE: check engine light is on. code reads p0410
Your car uses an air pump, usually driven by the serpentine belt, to add air to the exhaust manifold to help burn any gas left in the exhaust ahead of the catalytic converter. This code is telling us there is something wrong with the valve or solenoid that controls the airflow into the manifold. I don't have details on how to troubleshoot those components, but a good scan tool may be able to do it.
SOURCE: po410 secondary air injection system malfunction
Two of the more common problems with Auroras.
P0442 - There is a small solenoid (about $30.00) mounted near the L.R. wheel that will fix this.
P0410 - Usually due to leaking Air Injection Valves. These are about 2" square, one near the passenger side firewall, the other near the drivers side radiator. They cost about $200.00/ea. most people just leave it go as it does not effect performance.
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my cardid that for a while the GM dealers told me that it would correct its self due to electrical problem and it did correct its self.
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