yes,,this could infact be the egr valve,,,remove and clean it with carb cleaner...these valves can get carbon on the valve,,not letting it close al the way,,letting it puch exhaust into the intake
a bad crank sensor can cause this problem,,and,most times not giv a code for it
NOTE: The EGR valve and Electrical EGR Transducer are serviced as an assembly.REMOVAL 1. Disconnect EGR transducer electrical connector and vacuum hose. (Inspect vacuum hose for any damage (Fig. 5). 2. Remove electrical connector from solenoid. 3. Remove EGR valve bolts from intake manifold. 4. Open EGR transducer clip and remove electric EGR transducer. 5. Remove EGR valve from intake manifold. 6. Clean gasket surface and discard old gasket. Check for any signs of leakage or cracked surfaces. - Repair or replace as necessary. INSTALLATION 1. Assemble EGR valve with new gasket onto the intake manifold. 2. Install mounting bolts. Tighten bolts to 22 Nm (200 in lb) torque. 3. Install electric EGR transducer in clip with orientation tab in slot and snap closed. 4. Reconnect vacuum hose and electrical connector to electrical EGR transducer.
REMOVAL 1. Raise and support vehicle. 2. Disconnect crankshaft position sensor electrical connector from the wiring harness connector (Fig. 4). 3. Remove crankshaft position sensor retaining bolt. 4. Pull crankshaft position sensor straight up out of the transaxle housing.NOTE: If the removed sensor is to be reinstalled, clean off the old spacer on the sensor face. A NEW SPACER must be attached to the sensor face before installation. If the sensor is being replaced, confirm that the paper spacer is attached to the lace of the new sensor (Fig. 5).INSTALLATION 1. Install sensor in transaxle and push sensor down until contact is made with the drive plate. While holding the sensor in this position, and install and tighten the retaining bolt to 11.9 Nm (105 in lb) torque. 2. Raise and support vehicle. 3. Connect crankshaft position sensor electrical connector to the wiring harness connector.
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