|
||
|
13th December 2012, 10:08 | #1 |
Avid contributor
MG ZT 190 - Legendary Optimist ;) Join Date: Nov 2012
Location: Abbeville
Posts: 185
Thanks: 0
Thanked 0 Times in 0 Posts
|
Engine stop rolling
A summary of the circumstances and the verifications already performed my car (MG ZT 190 2.5l V6 ESS (2001)):
Down for 2 months. Circumstances of failure: Along the way, loss of power, the motor signal is displayed on the dashboard, followed by a gradual deceleration to a stop the engine. Can not restart. Here are the previous investigations: - I first thought of fuel starvation -> by filling 20 liters remained in the tank - The candles were black and wet -> certainly drowned due to different misfire. I cleaned. - The relay and fuses associated with the fuel pump -> Ok - I listened to the pump through the tank -> Ok - The pump seems to work correctly -> Key in position 1, you can hear turn - Checking for gas to the injectors -> By disconnecting the supply line, key in position 1, I can gather from 20 to 25 ounces of gasoline - Check the fuel filter without removing the filter but an attempt to pose an orange collar attaches the filter to set a default pressure -> Failed filter because my model is not compatible with the default . The orange clip is for sale ... - Checking the crankshaft sensor -> I replace against a new but without effect. - Verification of probes using a multimeter -> after cleaning and attempt to repair the lambda sensor with a torch, it gives "10 ohms" each. In truth, I do not even use a multimeter ... I have finally replaced by new probes - Check sensor idle -> complete cleaning and change of the membrane (pending receipt of a new sensor) - Check intake manifold -> Do not seem dirty, just a little too fat for my taste in the engine cylinders butterflies - Check the air pressure sensor and temperature -> Thorough cleaning (eventually, I gave a new sensor) .... etc. Good short, I managed to restart the engine using the accelerator at the same time. But the problem is that I do not idle the engine. I have to keep the foot on the pedal and keep playing with the accelerator. It releases a lot of smoke at the back and at one point even accelerating the engine floods. And impossible to restart the engine whines again. I initially perform diagnostics using the diagnostic function on-board the vehicle. Here are some test results: Engine off and key in position 1 5.0-Average Power 120 = 12 liters / 100 km 5.1-Battery remaining 247 km in 6.0-0296 fuel level ... 6.1-Overall fuel ---- 8-Value in HEX 1 "£" 8 9.0-Battery 12 V 120 = 10.0-Code 56 countries 11.0-unit system FdFC07 Errors in memory 14.0-(14.0-> C78100), (14.1-> F48400), (14.2-> 000 000) (14.3-> 000 000) (14.4-> 000 000) Then I has a diagnostic device and the ELM 327 Here are the results I got: Here some data it cold, in switch position 2: Freeze Frame Data Fuel system 1 status OL Fuel system status 2 OL Calculated Load Value 48.2% Engine Coolant Temperature 21 ° C Short Term Fuel Trim Bank1-0.0% Short Term Fuel Trim-Bank3 10.9% Long Term Fuel Trim-Bank 1 -8.0% Long Term Fuel Trim Bank 3-10.9% Short Term Fuel Trim Bank2-0.0% Short Term Fuel Trim-Bank4 12.5% Long Term Fuel Trim-Bank 2 -8.0% Long Term Fuel Trim-Bank 4 12.5% Intake Manifold Absolute Pressure 83kPa Engine RPM 4480rpm Vehicle Speed Senor 0km / h Pending Trouble Codes P0300 Random / Multiple Cylinder Misfire Detected (random misfire detected) P0172 System Too Rich Bank 1 (Mixture too rich line 1) P0175 System Too Rich Bank 2 (Mixture too rich line 2) P0500 Vehicle Speed Sensor "A" (the vehicle speed sensor - circuit failure) -> E waiting to receive new front axle sensor 99kPa inlet pressure tubure Ignition advance deg 9.5 ° Absolute position of the throttle 11.37% O2 sensor voltage channel 1 sensor 1 0410 Volt O2 sensor voltage channel 1 sensor 2 0410 Volt O2 sensor voltage channel 2 sensor 1 0410 Volt Remains to be verified: - The fuel pressure to the injectors -> problem, I do not have a compression tester - The beam -> Waiting reception -. Etc. .. That's where I am ... Last edited by jymix; 13th December 2012 at 10:14.. |
|
|