"Restricted Performance" message & check engine light
#22
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I found this thread this am after having the exact same check engine light and restricted performance notice on the dash. I have a 2005 STR with 60k miles and noticed it running rough in January when first starting it in the garage but then smoothed out nice after backing out and heading down the road. I talked to my local Minneapolis Jag dealer and he recommended some fuel injector cleaner so I added that in Jan., proceeded to put on about 3k miles with better idling in the morning but it was still there a little. Added another bottle of fuel cleaner and ran another 2k miles til last night when the check engine light and restricted performance warning came on. The car ran rough when sitting in the driveway but then cleared up within about 15 minutes after I took off again to head cross town with check engine light still on but the restricted performance warning gone. I will check several things based on what I just read but was wondering if rough idling occurred with anybody and if that maybe means something different.
#23
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F.damian (10-22-2012)
#24
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F.damian (10-22-2012)
#25
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Agree with previous replies. The check engine light went out yesterday and I got a call back from Minneapolis Jag who indicated that they have been having this issue with several cars. He said that their mechanics felt that it was from the "winter blend" of premium gas here in the midwest because the same type of symptoms were occurring.
1. Car would run fine on the highway or where a steady speed was occurring
2. When car would come to a stop at a light or parking, the car would start to run rough and check engine light would come on with restricted performance label.
Mechanics said that the fuel injectors would be fully open when running and there would be no issues but when you came to an idle, then the fuel injectors would start to shut down and croak on the bad "winter" alcohol based gas.
The mechanic also said what a couple other replies in this forum had indicated which was to not use the K&N due to the oil screwing up the MAF sensors. He said that the paper based regular air filter was best. Also, indicated to regularily change the fuel filter since that would trap a lot of the bad crap in gas now days.
1. Car would run fine on the highway or where a steady speed was occurring
2. When car would come to a stop at a light or parking, the car would start to run rough and check engine light would come on with restricted performance label.
Mechanics said that the fuel injectors would be fully open when running and there would be no issues but when you came to an idle, then the fuel injectors would start to shut down and croak on the bad "winter" alcohol based gas.
The mechanic also said what a couple other replies in this forum had indicated which was to not use the K&N due to the oil screwing up the MAF sensors. He said that the paper based regular air filter was best. Also, indicated to regularily change the fuel filter since that would trap a lot of the bad crap in gas now days.
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F.damian (10-22-2012)
#26
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My car has the check engine light on, and sometimes the restricted performance light will come on during acceleration. Only noticeable problems are a rough idle, and clicking noise when the hood is up. Anything past idle, engine seems to run smooth, no noticeable problems on the highway
Codes pulled:
P0308
P1314
P1316
P1111
I'm supposed to go on a business trip tomorrow, not sure if I can even take my car on it, I'm worried about damaging the engine.
Someone please advise!! I would take it into the Jag dealership if I had time, but the schedule is very tight right now!
Codes pulled:
P0308
P1314
P1316
P1111
I'm supposed to go on a business trip tomorrow, not sure if I can even take my car on it, I'm worried about damaging the engine.
Someone please advise!! I would take it into the Jag dealership if I had time, but the schedule is very tight right now!
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F.damian (10-22-2012)
#27
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F.damian (10-22-2012)
#29
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F.damian (10-22-2012)
#30
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as jagv8 stated, with just a CEL, only way to have any direction is thru the Pcode(s) stored in the computer. If you don't have a scanner, take to autozone, pep boys, o'reilys, somewhere to see if they can scan it for you. Not all scanners work on the jag, so if it doens't work the first time out, try another store. luck!
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F.damian (10-22-2012)
#31
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I took the car to the dealer and it is being checked out. I don't trust others now as my trusted mechanic put the wrong air filter in and caused the car to go into "limp" mode in the middle of the Arizona Desert. So far they are covering my costs. The car was undriveable. I suppose there are more expenses coming.
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F.damian (10-22-2012)
#33
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I have a 2003 Jag S-type 3.0 and the check engine light comes on after getting fuel. Each time it has happened it was Shell gas. I changed to 76 and premium gas and the light went off? The error code was P120 and the Midus guy said my second Catalytic Converter was blown after replacing Cat 2 last month after the wrong air filter caused excessive amounts of sand, dirt, etc. to go into the engine on a long trip to Arizona and back. Firestone ended paying for all of that, but now some troubles with Cat 1. Any ideas?
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F.damian (10-22-2012)
#34
#35
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Hi, What was the solution? I have the same thing happening and cant figure it out.
#36
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S-Type Owner (09-21-2019)
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