U1504 Opel Ascona DTC Code

Opel Ascona Engine Specifications:

Engine Type :	Single Cylinder Engine
Cylinder Type :	Opposed Cylinder Engine
Engine Air Intake Process :	Supercharged Engine

Your Opel Ascona engine control system detects a problem, the computer stores the diagnostic trouble code U1504 in its memory. To figure out what is wrong with your vehicle you must first extract the U1504 DTC For Opel Ascona.

To solve U1504 Opel Ascona problem, you'll have to remove the muffler, crankcase and other components blocking the valve chamber. Then, remove the cylinder head bolts (label for easy re-installation) Adjust the jaws of the valve spring compressor until they touch the top and bottom of the valve chamber Push the tool in to compress the spring and tighten the jaws Remove the retainers and lift out the valves , compressors and springs

U1504 Opel Ascona DTC Meaning

U	Network Code - Problem is climate control system, lighting, airbags, etc.
1	MFG - Manufacturer Specific
5	Auxiliary Emission Controls
0	Air Conditioning (A/C) Clutch Feedback Circuit High Voltage
4	Cruise Vehicle Speed/Set Speed Difference Too High

While fuel economy was increased, acceleration was seriously compromised, and the loss of engine vacuum led to a dangerous loss of braking assist when the U1504 Opel Ascona code system was in four-cylinder mode. In addition to these issues, while the company proposed a hydraulically controlled system that could be switched from within the car, the version they implemented had to be manually changed in the engine compartment using hand tools.