Abarth 200 P1799 Engine Trouble Code
What is Abarth 200 P1799?
Abarth 200 P1799 indicates potential catalytic converter failure. If completely failed, your vehicle may not run properly and fuel economy will suffer significantly. Average replacement cost is $2,000–$2,140. This repair requires professional service and should not be delayed.
P1799 on the Abarth 200
On the Abarth 200, a secondary air injection pump that has seized due to moisture ingress is a common trigger for P1799. The fault is usually only present on cold starts and clears itself after two to three warm-up cycles, making it easy to overlook.
Code Information
| Code Type: | OBD-II Powertrain (P) Trouble Code |
| System: | Powertrain |
| Vehicle: | Abarth 200 |
| Brand: | Abarth |
| Model: | 200 |
| Code: | P1799 |
P1799 Abarth 200 Symptoms
Check Engine Light
Illuminated Abarth 200 dashboard warning
Engine Stalling
Engine stops unexpectedly or misfires
Performance Issues
Reduced power or acceleration on the Abarth 200
Starting Problems
Difficulty starting the engine
Poor Fuel Economy
Increased fuel consumption on the Abarth 200
Increased Emissions
Failed emissions test due to P1799
P1799 Code Structure
Understanding what each digit means in the P1799 powertrain trouble code:
| P | 1 | 7 | 9 | 9 |
|---|---|---|---|---|
| Powertrain Code | Fuel And Air Metering | Fuel Rail Pressure Sensor Circuit Malfunction | Crankshaft Position Sensor A Circuit Malfunction | Reverse Input Circuit |
How to Fix Abarth 200 P1799
Diagnostic Steps:
The catalytic converter has oxygen sensors before and after it. When warm and in closed-loop mode, the upstream O2 sensor reading should fluctuate, while downstream should remain steady.
Repair Solution:
Crankshaft position sensor signals the computer for precise ignition and fuel injection timing. Faulty sensors cause rough running and reduced efficiency. Modern vehicles enter limp mode and illuminate the check-engine light.
Technical Notes:
Parts or components should not be replaced based solely on P1799 DTC. Consult your vehicle service manual for proper diagnostic procedures, possible causes, and required testing before replacement.
Abarth 200 P1799 Repair Cost
When P1799 appears on a Abarth 200, a camshaft position sensor swap costs $140–$260 all-in. This is one of the more affordable sensors on this platform. If the wiring harness is also damaged, add $60–$90 for harness repair or section replacement.
P1799 Description
P1799 engine trouble code is related to Reverse Input Circuit.
Main Cause
The primary reason for P1799 OBD-II Engine Trouble Code is: Fuel Rail Pressure Sensor Circuit Malfunction.
Common P1799 Misdiagnosis on the Abarth 200
Replacing the PCM/ECU on the Abarth 200 for a persistent P1799 is a last-resort action that is often performed prematurely. Statistically, less than 2% of P1799 faults on this platform originate in the ECU; wiring, sensors, and mechanical causes account for the remainder.
DIY Repair Guide: P1799 on Abarth 200
The fuel pressure test on the Abarth 200 requires a Schrader-valve type fuel pressure gauge ($25–$40) connected to the fuel rail test port. With the ignition ON (engine off), pressure should hold above 30 PSI for two minutes. A rapid drop confirms a leaking injector or failing regulator as the root cause of P1799.
Preventing P1799 on the Abarth 200
For Abarth 200 owners in high-humidity climates, applying electrical contact cleaner and dielectric grease to the ECU connector pins every two years prevents the corrosion-related signal errors that register as P1799.
Frequently Asked Questions — Abarth 200 P1799
A: It depends on the severity. If the check-engine light is steady, it is generally safe to drive to a workshop within the next few days. If the light is flashing, pull over safely as soon as possible — a flashing light indicates an active misfire that can cause expensive catalytic converter damage within minutes.