16236757, 16200870. PONTIAC Grand Am BUICK LeSabra ENGINE ECM ELEC CONT UNIT ECU LH CENTER DASH ID COMPUTER. Located under left center of dash for Cutlass & Malibu. 2-LUMCAR 98 X W -Ele Cont Unit (ECU), (LH frnt of. ).
After hours of diagnostics, experience pointed to the PCM. The internal board was likely failing due to age and heat cycles, causing these ghost-like issues. When it falters, the entire driving experience suffers.
CUTLASS 98 & 99 (ID 16236757). GRAND AM 98 (3.1L) & 99 (3.4L, ID 16236757, 9356741, 9366314, 9357034, 9347440). When it falters, everything from engine timing to transmission shifting can be affected.
ALERO 99 (3.4L, ID16236757, 9356741, 9357034, 9357440). GRAND AM 98 (6-191, 3.1L) & 99 (3.4L, ID 16236757, 9356741, 9366314, 9357034, 9347440, 9357440). As the central computer for your engine and transmission, its proper function is critical.
What if my part number isn’t an exact match to 9357034?. What makes this a smarter choice?. We take the biggest headache out of the repair process. Before this module ever leaves our facility, we program it with the latest GM software updates, specifically matched to your car’s Vehicle Identification Number (VIN).
There were no consistent trouble codes, just a history of random misfire codes that wouldn’t point to a specific cylinder. We checked the fuel pressure, spark, and sensors—all were within spec. After hours of chasing ghosts, we hooked up a scope to the PCM outputs and saw erratic signals to the injectors and transmission solenoids.
Ident: 16236757. General Policies. PART NUMBER. MATCH UP NUMBERS. 9356744 9357034 9357440 9366314.
It is compatible with service numbers09356741, 16236757, 9357034, 9357440, and 9366314. The owner had already replaced the battery and crank sensor, but it would only crank, never start. The scan tool wasn’t showing any crank signal codes, which was puzzling.
RIVIERA 98 (3.8L). Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be released. Once disconnected, unbolt the old module and remove it from the vehicle.