20 Most Recent 1997 Volvo S90 Questions & Answers

It is at the back of the engine where the bell housing and the engine block bolt together. You have to access it from the top.

Hi,there are lots of hand computers on e-bay that can read the ECU and you can cleer old faults that are stored on the ECU. hope this was some help. good luck.

sounds like the ground cable is not hooked to the motor, see there is one for the frame and one for the motor and your trying to start it using the frame ground and will burn up the frame ground and have a whole new problem. quick check is to hook the jumper cable to the ground on the battery then to the engine block, bet it starts up. jay the pool pump motor repair guy longwood florida

Not sure if it will work on a Volvo, but normally if the anti-theft system has been tripped just use the key to lock then unlock the door. If not, contact a Volvo dealer or local parts store for help.

maybe the oil level incorrect, check to see if its leaking.____________fgtech galletto 2-master

Click here to see.Click here to see part.

check out this site, although for a different volvo it might be able to help. http://www.matthewsvolvosite.com/forums/viewtopic.php?t=9681or try thesehttp://volvoforums.com/forum/volvo-240-740-940-12/fuel-pump-relay-location-18638/http://www.swedishbricks.net/700900FAQ/FuelSystem.html

Click the link below :----http://wikisolutions.blogspot.in/2012/02/get-free-answers.html

Check for cracked head gasket. Is the oil a funny color? Check for cracked block.

I have the same issue. As far as I can tell it's probably the ignition switch and or/ ignition lock assembly. Parts only you can find the switch for $65. If you replace the ignition lock assembly you should have it ordered for your car by VIN # to get a matching key.

this obd2 trouble code table can help you understand the meaning of code. And for your code, you can try following:
Using a scan tool, determine if the Bank 1, sensor 1 is switching properly. It should switch rapidly between rich and lean, evenly

1. If it does, the problem is likely intermittent and you should examine the wiring for any visible damage. Then perform a wiggle test by manipulating the connector and wiring while watching the o2 sensor voltage. If it drops out, fix the appropriate part of the wiring harness where problem resides.

2. If it doesn\'t switch properly, try to determine if the sensor is accurately reading the exhaust or not. Do this by removing the fuel pressure regulator vacuum supply briefly. The o2 sensor reading should go rich, reacting to the extra fuel added. Reinstall regulator supply. Then induce a lean condition by removing a vacuum supply line from the intake manifold. The o2 sensor reading should go lean, reacting to the enleaned exhaust. If the sensor operates properly, then the sensor may be okay and the problem may be holes in the exhaust or an unmetered vacuum leak in the engine (NOTE: Unmetered vacuum leaks at the engine are almost always accompanied by lean codes. Refer to the appropriate articles for diagnosing an unmetered vacuum leak). If the exhaust does have holes in it, it's possible that the o2 sensor may be misreading the exhaust because of the extra oxygen entering the pipe via those holes

3. If none of this is the case and the o2 sensor just isn't switching or acts sluggish, unplug the sensor and make sure there is 5 Volt reference voltage to the sensor. Then check for 12V supply to the o2 sensor's heater circuit. Also check for continuity to ground on the ground circuit. If any of these are missing, or aren't their proper voltage, repair open or short in the appropriate wire. The o2 sensor will not operate properly without proper voltage. If the proper voltages are present, replace the o2 sensor.

PO440= Canister purge (CP) valve, leakage
Possible Source(s)
Blocked EVAP canister.
Blocked hoses.
Defective canister purge (CP) valve (permanently open or closed).
Code 0358 has no listing ??