I recently replaced the EGR Valve on my 98 Toyota Camry, but after resetting the check engine light. It still pops after about 10 miles with the EGR flow insufficient code. I've cleaned everything including the throttle body and tried again, it still pops every time. I have no hoses mis-routed and all hose a connected correctly. Does anyone know what else could be causing me to get this error code?
2006-12-14 14:38:31 · 7 answers · asked by obrienj1978 1 in Cars & Transportation ➔ Maintenance & Repairs
On this model, the egr system is composed of an egr valve that opens vacuum from exhaust to intake manifold, a vacuum modulator that regulates the amount of vacuum introduced to the egr valve and finally the egr vsv (vacuum switching valve) solenoid that directs vacuum flow to the egr valve after a command from the ecm. A quick way to test this is to manually pump 3-4 inches of vacuum to the egr valve during idle and the engine should stall. This shows the egr valve is working. The modulator itself is nothing but a regulator valve that that reduces the engine vacuum from 18-19 inches to 3-4 inches needed by the egr valve. This modulator pressure can be checked by teeing a fitting and measured by a vacuum gage.
Finally, the vsv solenoid can be tested with an ohmmeter to check the resistance of the windings. However, it is reported that this part has a high attrition rate because of it’s exposure to heat causing intermittent movement of the shaft inside. This is the part that should be checked thoroughly and replaced if possible.
2006-12-14 15:02:03 · answer #1 · answered by MICKEY M 2 · 1⤊ 0⤋
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RE:
EGR Flow insufficient on 1998 Toyota Camry 4 cyl. Replaced EGR Valve but still have check light after reset?
I recently replaced the EGR Valve on my 98 Toyota Camry, but after resetting the check engine light. It still pops after about 10 miles with the EGR flow insufficient code. I've cleaned everything including the throttle body and tried again, it still pops every time. I have no hoses...
2015-08-06 06:42:04 · answer #2 · answered by Anonymous · 0⤊ 0⤋
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FORD got a load of faulty EGR valves that made it to the dealers. Have the new valve checked. I've seen Ford Techs put in 3-4 of these before they got one that worked. This may not be your problem but it's a good place to start.
2016-04-06 02:56:27 · answer #3 · answered by Anonymous · 0⤊ 0⤋
This code/ Error message is almost ALWAYS due to a Bad Back Pressure transducer.
( also called EGR Vacuum Modulator)
I have replaced literally Hundreds of them on Toyota's.
2006-12-14 14:41:28 · answer #4 · answered by Gordon B 5 · 2⤊ 0⤋
How many EGR sensors Not Valves now a days does your car have? My Caddie has seven
2006-12-14 14:42:19 · answer #5 · answered by Anonymous · 0⤊ 1⤋
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2015-08-05 13:30:07 · answer #6 · answered by Anonymous · 0⤊ 0⤋
HI its almost always the egr vacuum switching valve it is mounted to the bottom of the intake , just follow the line from the egr valve
down to in Thanks
2006-12-17 22:56:28 · answer #7 · answered by Anonymous · 3⤊ 1⤋
Try replacing the oxygen sensor.
2006-12-14 14:43:01 · answer #8 · answered by Chris A 1 · 1⤊ 2⤋