My 1996 oldsmobile cutlass supreme runs rough, no power, has new egr valve. whats next?

SOURCE: my 96 cutlass supreme will turn over but won't idle and dies

may have leaky injectors or fuel pump presure regulater

machinehead2

• 14 Answers
• Posted on Jan 10, 2009

SOURCE: 1994 oldsmobile cutlass supreme will not start.security flashes

Sounds like a RFID issue. Your key most likely has a chip inside of it. Most of the time people will have multiple keys on their key chain that can cause interference with the receiver in your steering column. Try using the one ignition key to start.

SOURCE: Engine will Turnover but it will not fire up

To check injector pulse, you need 2 people. One is to crank the engine. The other is to watch the voltmeter connecting to the plug delivering the electrical signal to an injector. If during a period of cranking, there is no voltage displayed that means there is no injector pulse. Here is an image of connector port going into the injector to open its valve as needed.

Testimonial: "Thank you, very specific directions, very helpful"

SOURCE: WHERE IS THE EGR VALVE ON A 1990 OLDSMOBLE CUTLASS

About $140.00

The EGR valve is mounted on the intake manifold and has an opening into the exhaust manifold.

The digital EGR valve, used on all 1990 and later EGR-equipped engines (Except the 2.5L and 1994-96 3.8L engine) is designed to control the flow of EGR independent of intake manifold vacuum. The valve controls EGR flow through 3 solenoid-opened orifices, which increase in size, to produce 7 possible combinations. When a solenoid is energized, the armature with attached shaft and swivel pintle, is lifted, opening the orifice.
The digital EGR valve is opened by the ECM, grounding each solenoid circuit individually. The flow of EGR is regulated by the ECM which uses information from the Coolant Temperature Sensor (CTS), Throttle Position Sensor (TPS) and Manifold Absolute Pressure (MAP) sensor to determine the appropriate rate of flow for a particular engine operating condition.

Digital EGR Valve Testing:

This system must be checked using a Tech 1®or equivalent scan tool. Steps 4, 5 and 6 must be done very quickly, as the ECM will adjust the idle air control valve to compensate for idle speed.

1. Using a Tech 1®or equivalent scan tool, check for any diagnostic trouble codes and solve those problems first. Refer to the Diagnostic Trouble Code (DTC) lists later in this section.
2. Select "EGR CONTROL'' on the scan tool.
3. Start and run the engine, until it reaches normal operating temperature, then allow the engine to idle for 2 minutes.
4. Energize EGR SOL #1; engine rpm should drop slightly.
5. Energize EGR SOL #2; the engine should have a rough idle.
6. Energize EGR SOL #3; the engine should idle rough or stall.
7. If all tests were as specified, the system is functioning properly.
8. If not, check the EGR valve, pipe, adaptor, gaskets, fittings, and all passages for damage, leakage or plugging. If all is OK, replace the EGR valve assembly.

SOURCE: 1994 oldsmobile cutlass supreme sl the fuse box for signal lights

the fuse box will be in 1 of 3 places (1)glovebox (2)under dash by drivers foot kick panel or (3) under hood .