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Why does my car run rough when idling?
Low or high fuel pressure from a dirty fuel filter, defective fuel pump, clogged fuel tank strainer, bad fuel regulator or dirty/clogged fuel injectors can cause rough idling. Try replacing the fuel filter and add fuel injector cleaning treatment to your fuel tank to clean and hopefully unclog your injectors.
What happens if a car sits idle for too long?
“If your vehicle sits idle for too long, the battery could die, the tires can develop flat spots and the engine oil may start to deteriorate. Just a short solo drive once a week and a little car care will keep your car running efficiently and safely.” When starting your car weekly, let it run for at least five minutes.
What should the LPG motor count be at idle?
Check the LPG stepper motor count (normally 150 to 175 at idle and similar at 1,500 RPM). The 0 should remain cycling while the 2 engine is at idle. The oxygen sensor should have 0 to 1 oscillating voltage if it is working OK.
How to diagnose LPG issues in a Ford?
First, do a basic vehicle inspection, drain the LPG converter and clean the idle jet. If these check out OK, with the vehicle running, connect the scan tool and bring up the parameters PIDs, bring up the on board diagnostics parameter IDs (codes used to request data from a vehicle) and do the following: Check for engine codes
What to do when LPG goes lean in car?
If the mixtures go lean as indicated by the 02 sensor being below 0.1 V and the stepper motor count is ramping lower to (say) 140 when the engine stalls, it may be a split or a hole in the balance line. To check the balance line remove it from the air filter end and, using a smoke machine, check for leaks but use only very low pressure.
What causes LPG to run out of the balance line?
If the engine stalls it is most likely to be a balance line problem. The balance line must be completely sealed as the incoming ram air is required to draw the correct amount of LPG through the idle circuit. Note: Stepper motor count- the higher the number, the richer the mixture.