Jaguar starts in a morning runs rough as if missing stalls runs week,ristricted performance comes on flashing then goes off.once warm cars great but no good first start help needed
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This could be a number of things. I'd like to know more about the cars maintenance history and any recent repairs that you have had performed. Symptoms of a rough idle and the smell of raw gas could be related to a clogged air filter, fouled spark plug, bad COP (coil over plug), or related wiring, clogged CAT (too much back pressure), dirty or defective, MAF sensor, damaged EGR valve, timing, damaged intake valve (need to perform a compression test to confirm), or a damaged fuel injector (the injector could be clogged, worn out and no longer spraying correctly). Please write back. I'm not sure what tests and inspections, you have already done. Were there any other symptoms? Did the engine light come on at all? If so, did you retrieve any codes? Let me know if this information helps and where you want to start from here, good luck.
If the sensor detects a problem, it sends a trouble code to the ECM and your "check engine" light will come on. IMO, your symptom sounds like "cold engine" issue. Myself, our 98 Toyota Rav4 will idle rough and engine stalls when put in drive, but the problem goes away when temperature shows the engine had warmed up to operating temperature. FYI the temperature sensor monitors the radiator coolant temperature. Normal engine temperature is when coolant reaches 120 degree fahrenheit. At around 130 to 140 degrees fahrenheit, the coolant thermostat opens to let radiator coolant flow from "bypass" mode to "enter radiator" mode. If it takes longer than 10 minutes for your engine to warm up, its possible the coolant thermostat is stuck in open "enter radiator" mode. When thermostat is close, coolant radiator bypass the radiator to speed up engine warm up, but if its stuck in open, it will take longer to warm up the engine. Another factor is ambient temperature. If its cold below 50 fahrenheit, it will take longer to warm up the engine.
Sounds like a cold start valve (which is actually an additional injector in the intake to assist in cold starting) If you can get it to your local prts store while the light is on they will read the codes for free and tell you what the car thinks is amiss.
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