..960. Cost $1600!
Have now driven ab. 300 miles and still 4 things on the test gauge show up negative. Mechanic keeps telling me it's because it's a European car. Is this true?
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1997 Volvo 960 Question: Had smog pump and water pump and variety of other things replaced on 1997 Volvo
..960. Cost $1600!
Answer #1milesauto from Miles Auto Service Inc., April 05, 2012, 10:53Master
need a little more info...what type of problem are you having? Is a warning lamp on? what test guage are you refering too and what things appear negative?
Replylitrite, April 05, 2012, 13:11Rookie
The tester that the mechanic connect to the car computer that tells them all the smog control devices are now
working, so that I can take it to the smog test place for registration purposes
WHAT IS A TEST GAUGE?
Replylitrite, April 05, 2012, 13:12Rookie
The one my mechanics use to connect to the car's computer and which shows them whether or not all the smog
control stuff is working. Right now I have 4 showing negative.
Replyglobalhelper, April 05, 2012, 18:11Master
4 monitors or eng codes?
Replylitrite, April 05, 2012, 18:32Rookie
I really dont know, monitors i think, they are showing goingthat the smog control stuff is online or not.
and it takes an amount of driving to get them all online properly so i can get it smogged.
all began with the check engine light being on for soem time now.
Replymilesauto, April 06, 2012, 04:53Master
I think the confusion is that the emmision system does run self test and 4 of the areas that it checkes still do not pass. That system has many compotents and smog pump is only one of them. The standards are the same for all cars sold in US. Ca. has some standards that are higher that the other states. This does not nessarly mean there are 4 more separate repairs. A simple vacume leak on a split hose could effect 4 monitors. Botton line it needs to be diagnosed by a technician that has the know how and training of the emmision standards to pass in your state.
Replylitrite, April 06, 2012, 05:11Rookie
Replymilesauto, April 06, 2012, 05:27Master
Let me add...when the scanner checks the system monitors we look for a pass or fail for each monitor. It could have a responce of no or not run. This does not mean there is a fault but your driving habits have not allowed for that test monitor to run its test yet. It not a fail yet it just means that more driving at a paticular speed or condition has not been met. To pass the full test all the monitors need to say Passed or on some scanners YES.
Replylitrite, April 06, 2012, 07:10Rookie
OK I see now. But I did 145 miles fwy yesterdaay and 80 the day before and over the past 10 days some rond town and other shorter fwy hops. I'm getting a little frustrated
Mech said one straight run up to L.A. (from San Diego) and back would do it, so....
Thank you for your answer.
Replymilesauto, April 06, 2012, 07:50Master
There is a bulletin taking about what conditions need to be met to satisfy system monitors. I tried to copy and paste to you. Things like it has to have a certain amount of gas in it etc.....read though it it may help you.
Emissions - Establishing OBDII Readiness Codes
960 - S/V 90/850/S70/V70/C70
Establishing Readiness for OBD II
As part of vehicle inspection programs various states have introduced a check of the vehicle Onboard Diagnostic System (OBD II). This inspection will check the operation of the malfunction indicator lamp (MIL), and scan for Diagnostic Trouble Codes (DTCs) and OBD II Readiness Codes within the electronic emission control system.
These programs have been introduced at the request of various State or Federal government agencies to assist states in meeting Clean Air Standards as required by Federal law and are applicable to all model year 1996 and later light-duty vehicles.
The OBD II system is a comprehensive system that is part of the vehicle Engine Management System that helps diagnose potential faults within the emission control system. The monitors within the OBD II system can provide very useful information about the status of the on board emission control system. These monitors indicate whether the emission system is, or is not, operating correctly and provide a fault code to help identify the malfunctioning system or component. This eliminates the traditional tail pipe exhaust gas test and expediting the inspection process.
Readiness is the method used to confirm that all of the engine management system emissions related on-board diagnostics have run successfully and no faults were detected. Readiness is only an indication that the diagnostic has run successfully The MY 1996 to 1998 Volvo are 'TRIP' based for establishing readiness. This requires two 'TRIPS' to be completed in order to reset readiness codes from 'NOT READY' to 'READY'. A 'TRIP' is identified in the Engine Management System Service Manuals TP 2308202 M 4.4, section KKKK, TP 2301202 M 4.3, section EBU, and TP2321201 M 4.4 (900) section VVV.
Following the procedures in these manuals may not allow all of the diagnostic monitors to run. The instructions listed in this bulletin will exercise all of the diagnostic monitors on these models. Upon completion of two trips and no diagnostic trouble codes are present; the readiness codes should be set to 'READY'.
A monitor remaining 'NOT READY' only indicates that the driving conditions for the diagnostic to run have not yet been met. There are several reasons the monitor status may be 'NOT READY', such as;
1. The battery has been disconnected for service and the ECM memory is erased.
2. A DTC has been erased from the ECM, resulting in readiness is re-set to 'NOT READY'
3. The driver may not normally drive far enough or in a pattern that readiness is completed during the drive.
1. No Diagnostic Trouble Codes (DTC) should be present in the ECM or TCM.
2. Fly wheel adaptation must be completed before diagnostics can run (Refer to Driving to change the flywheel status to "Ready").
3. Connect Volvo Systems Tester (VST). Enter the DIAGNOSTIC CHECK menu to verify if a trip has been completed as shown. Please Note: If using a scan tool other than the VST, different terms for reporting the same status may be displayed. 'READY' may be displayed as 'COMPLETE' and, 'NOT READY' may be displayed as INCOMPLETE'.
4. In order to insure EVAP leakage detection completion, the fuel level in the car should be above 1/4 and below 3/4 tank.
5. Air conditioning (A/C) must be off during idle periods. A/C compressor activation during the EVAP diagnostic may interrupt the EVAP test.
6. Select a suitable route where it is possible to achieve necessary speed and load conditions and occasionally stop at the side of the road safely. This needs to be done while obeying all traffic regulations and posted speed limits.
7. Important: Keep as steady a throttle pedal as possible when driving.
8. Engine temperature at start must be between + 29°C (84°F) to + 49°C (122°F). If engine temperature is below + 29°C, start engine to warm up over + 29°and then shut off. Restart engine when coolant temperature is between + 29°C and + 49°C.
A VST can be used to monitor the status of each readiness code. The readiness code is identified by a corresponding DTC/EFI code. As each readiness code is completed the DTC/EFI code will drop off the screen.
1. Drive a normal urban driving cycle for 6 minutes. Accelerate gently where necessary keeping the throttle as steady as possible. Moving the throttle and changing loads may interrupt individual diagnostics requiring a longer drive time.
2. Safely stop the vehicle and allow the engine to idle for 1-1/2 minutes. Fuel trim adaptations should be checked during this stop, DTC/EFI 231 and 232.
3. Drive a normal urban driving cycle for 6 minutes. Accelerate gently where necessary keeping the throttle as steady as possible.
4. Safely stop the vehicle and allow the engine to idle for 2-3 minutes. Secondary air system should be checked at this stop, DTC/EFI 442, 445 and 448.
5. Accelerate normally to a road speed over 45 MPH and try to keep the engine between 1800-2200 RPM. With an automatic transmission select 3rd or 4th gear. It is most important to keep the throttle pedal as steady as possible. It is better to let the road speed or RPM fluctuate slightly and keep the pedal steady. Drive for 5-6 minutes.
6. Safely stop the vehicle and allow the engine to idle for 2-3 minutes. Leakage diagnostics should be checked and at this time, DTC/EFI 611 and 612.
7. Accelerate normally to a road speed over 45 MPH and try to keep the engine between 1800-2200 RPM. With an automatic transmission select 3rd or 4th gear. It is most important to keep the throttle pedal as steady as possible. It is better to let the road speed or RPM fluctuate slightly and keep the pedal steady. Drive for 5 minutes.
8. Safely stop the vehicle and allow the engine to idle for 1-1/2 minutes.
9. Accelerate the vehicle normally to 1800-2000 RPM and then slow back down to a stop, repeat this step 4 times to set the cycle flag for idle air adaptation. The ECM needs 7 idle phases total to adapt. These four and the three previous stops will complete this check.
10. Stop car but do not shut off the engine. Using the VST check the trip/readiness status. If the trip is not 'COMPLETE', use the enter function on the VST to see the DTCs that remain 'NOT TESTED'. Use the detailed information following to meet the conditions necessary to allow the specific DTCs to be checked. If trip is 'COMPLETE' but readiness is 'NO', a second trip will be needed to establish readiness.
all diagnostic functions are NOT completed:
To determine which diagnostic functions have not been completed use the VST and enter the DIAGNOSTIC CHECK menu. At the TRIP/READINESS window press enter. The EFI codes representing individual diagnostic functions will be displayed.
Note the codes that are NOT TESTED. For codes not tested it is possible to run only that portion of the TRIP. Listed below are the specifics on how individual codes can be addressed:
^ DTC/EFI 233 - Adaptive Idle Air trim. After completing the trip and the function is not set, idle the engine for 60 seconds, press the accelerator and rev up the engine above 1500 RPM for a few seconds, return to idle for 60 seconds. Continue this until EFI 233 is completed.
^ DTC/EFI 425/436 - Rear oxygen sensor, Accelerate to at least 45 mph, drive for 5 minutes at 1800-2200 RPM.
^ DTC/EFI 611/612 - Fuel tank system. Run the quick test in VST for leakage detection monitoring. (ACTIVATION -> ACTIVATE DIAG -> LEAKAGE DIAGNOSIS)
^ DTC/EFI 442/445/448 - Pulsed Secondary Air Injection system. Run the Quick Test in VST for the Pulsed Secondary Air system monitoring (ACTIVATION -> ACTIVATE DIAG -> SAS DIAGNOSIS).
^ DTC/EFI 435 - Front heated oxygen sensor, slow response. Drive the car with an Engine speed between approximately 2200 to 2800 RPM and a load value between 1.1 to 1.8 ms (LOAD - TL in VST Monitor Test). If equipped with an automatic gearbox select a lower gear if necessary.
- Drive for 2 minutes at 1800-2200 RPM, manual gear box equipped gear selection dependent on vehicle speed.
- Accelerate directly to 3000 - 3500 rpm for 30 seconds, manual gear box equipped use third gear
- Reduce rpm to 1800 - 2200 for 2 minutes, manual gear box equipped use fifth gear
- Accelerate directly to 3000 - 3500 rpm for 30 seconds, manual gear box equipped use third gear
- Reduce rpm to 2300 - 2500 for 2 minutes, manual gear box equipped use fourth gear
Replylitrite, April 06, 2012, 08:18Rookie
Great! I'l do this stuff this morning and then take it back to mechanic again.
I'll let you know what happens.