Codes 22, and 33. Help me out would ya?
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Senior Member
Joined: Oct 1999
Posts: 786
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From: Austin, Tx
Car: 92 Formula
Engine: L98
Transmission: A4
Codes 22, and 33. Help me out would ya?
Ok, 92 Formula 350.
The idle has not been staying steady lately. It will go the normal pace, then slow... then go back to normal. This is after driving it for a little while.
I do need an EGR valve, so that may have something to do with it.
I checked the codes tonight... (I am changing the oil), and would love to be able to fix the problems tomorrow.
22 : Throttle Position Sensor Do I need to replace it? Or could it be something else that is causing the problem...
33 : Map sensor, High voltage. What can I do about this?
I hope I have been descriptive enough.
Thanks for the help in advance!
The idle has not been staying steady lately. It will go the normal pace, then slow... then go back to normal. This is after driving it for a little while.
I do need an EGR valve, so that may have something to do with it.
I checked the codes tonight... (I am changing the oil), and would love to be able to fix the problems tomorrow.
22 : Throttle Position Sensor Do I need to replace it? Or could it be something else that is causing the problem...
33 : Map sensor, High voltage. What can I do about this?
I hope I have been descriptive enough.
Thanks for the help in advance!
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Joined: Jan 2000
Posts: 19,651
Likes: 309
Kiz,
Yes, you have given enough information (I wish everyone would be that descriptive).
The DTC for the TPS may also have something to do with the MAP sensor error. The ECM expects to have a certain range of MAP signals at a given engine RPM and throttle opening. If the TPS is not correct, the ECM will not be able to calculate the correct range of MAP signals, and can set the error code.
Test the TPS with either a digital voltmenter or ohmmeter. The TPS voltage signal on the 'B' terminal should vary from something less than 1.0VDC at the idle position to something over 4.0VDC at the WOT position. If there are any spots through that range that show no voltage as you slowly move the throttle from idle to wide open throttle, the TPS has a "dead" spot and should be replaced. If the idle position voltage is over 1.0VDC, you have a problem with the TPS or its mounting. Of course, you should check the wiring to the TPS to make sure the connections are clean and tight, and don't overlook the ECM signal grounds at the back of the right cuylinder head or intake.
Fix the TPS first, and the MAP problem may go away.
Yes, you have given enough information (I wish everyone would be that descriptive).
The DTC for the TPS may also have something to do with the MAP sensor error. The ECM expects to have a certain range of MAP signals at a given engine RPM and throttle opening. If the TPS is not correct, the ECM will not be able to calculate the correct range of MAP signals, and can set the error code.
Test the TPS with either a digital voltmenter or ohmmeter. The TPS voltage signal on the 'B' terminal should vary from something less than 1.0VDC at the idle position to something over 4.0VDC at the WOT position. If there are any spots through that range that show no voltage as you slowly move the throttle from idle to wide open throttle, the TPS has a "dead" spot and should be replaced. If the idle position voltage is over 1.0VDC, you have a problem with the TPS or its mounting. Of course, you should check the wiring to the TPS to make sure the connections are clean and tight, and don't overlook the ECM signal grounds at the back of the right cuylinder head or intake.
Fix the TPS first, and the MAP problem may go away.
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