Daihatsu Consorte P1642 Engine Trouble Code
What is Daihatsu Consorte P1642?
Daihatsu Consorte P1642 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.
P1642 on the Daihatsu Consorte
The Daihatsu Consorte has a known weak point in the lambda sensor wiring loom where it passes through the floor pan grommet. Road salt and vibration cause the insulation to crack at this point, creating an intermittent open circuit that stores P1642 without a consistent symptom.
Code Information
| Code Type: | OBD-II Powertrain (P) Trouble Code |
| System: | Powertrain |
| Vehicle: | Daihatsu Consorte |
| Brand: | Daihatsu |
| Model: | Consorte |
| Code: | P1642 |
P1642 Daihatsu Consorte Symptoms
Check Engine Light
Illuminated Daihatsu Consorte dashboard warning
Engine Stalling
Engine stops unexpectedly or misfires
Performance Issues
Reduced power or acceleration on the Daihatsu Consorte
Starting Problems
Difficulty starting the engine
Poor Fuel Economy
Increased fuel consumption on the Daihatsu Consorte
Increased Emissions
Failed emissions test due to P1642
P1642 Code Structure
Understanding what each digit means in the P1642 powertrain trouble code:
| P | 1 | 6 | 4 | 2 |
|---|---|---|---|---|
| Powertrain Code | Fuel And Air Metering | Fuel Temperature Sensor B Circuit Range/Performance | Injection Pump Fuel Metering Control 'B' High | Glow Plug/Heater Circuit 'A' Malfunction |
How to Fix Daihatsu Consorte P1642
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 P1642 DTC. Consult your vehicle service manual for proper diagnostic procedures, possible causes, and required testing before replacement.
Daihatsu Consorte P1642 Repair Cost
The EVAP purge valve is among the cheapest P1642 fixes on the Daihatsu Consorte: the part itself retails for $25–$60 and installation takes under 30 minutes. A DIY-capable owner can complete this repair at home, keeping total expenditure below $80.
P1642 Description
P1642 engine trouble code is related to Glow Plug/Heater Circuit 'A' Malfunction.
Main Cause
The primary reason for P1642 OBD-II Engine Trouble Code is: Fuel Temperature Sensor B Circuit Range/Performance.
Common P1642 Misdiagnosis on the Daihatsu Consorte
A catalytic converter is often condemned on the Daihatsu Consorte when P1642 appears and an efficiency code is present. Before replacement, verify that the upstream oxygen sensor is not slow-responding — a lazy O2 sensor mimics catalytic inefficiency perfectly.
DIY Repair Guide: P1642 on Daihatsu Consorte
The coolant temperature sensor on the Daihatsu Consorte is a straightforward DIY item (difficulty 2/5). Have a drain tray ready for the small amount of coolant that spills when the sensor is removed. Top up the cooling system afterwards and check for air pockets.
Preventing P1642 on the Daihatsu Consorte
For diesel Daihatsu Consorte owners, a DPF (Diesel Particulate Filter) regeneration run on the motorway every 500 miles prevents soot blockage that back-pressures the exhaust and forces P1642 flags via the pressure differential sensors.
Frequently Asked Questions — Daihatsu Consorte P1642
A: Not always. Across model years, Daihatsu revised sensor specifications, wiring paths, and ECU calibrations. Always confirm the repair procedure matches your specific vehicle's production year and engine code, as parts and labour times can vary significantly.