Throttle body?
#22
#23
#24
#25
![Default](/forum/images/icons/icon1.gif)
Achy, i had the exact same problem on my STR bro.. i was driving with RP for almost 2 weeks.. it drove me crazy!! i finally made some time to take it to my unlce for a vacuum leak inspection and 100k tune up. he sprayed almost the whole damn engine bay looking for the leak and not the slightest change in engine idle occured.. however, my air filter and fuel filter were both so dirty one would think they werent ever changed in my car's 101k mile life.!He installed a new K&N, new fuel filter, oil filter, spark plugs.. the works. my uncle also cleaned the MAF sensor, which in his opinion, due to such a dirty air filter, was the reason for the lean codes.. its been a week now. NO check engine light. NO codes. NO RP!!! my car feels brand new.. ![Icon Bike](https://www.jaguarforums.com/forum/images/smilies/icon_bike.gif)
Maybe its time for a tune-up?? if not.. - air filter, - fuel filter, - fuel cap,.. i would check any and all of those first before dishing out any money on anything TB related.. just my .02 cents.. Goodluck!!
![Icon Bike](https://www.jaguarforums.com/forum/images/smilies/icon_bike.gif)
Maybe its time for a tune-up?? if not.. - air filter, - fuel filter, - fuel cap,.. i would check any and all of those first before dishing out any money on anything TB related.. just my .02 cents.. Goodluck!!
#26
![Default](/forum/images/icons/icon1.gif)
Achy, i had the exact same problem on my STR bro.. i was driving with RP for almost 2 weeks.. it drove me crazy!! i finally made some time to take it to my unlce for a vacuum leak inspection and 100k tune up. he sprayed almost the whole damn engine bay looking for the leak and not the slightest change in engine idle occured.. however, my air filter and fuel filter were both so dirty one would think they werent ever changed in my car's 101k mile life.!He installed a new K&N, new fuel filter, oil filter, spark plugs.. the works. my uncle also cleaned the MAF sensor, which in his opinion, due to such a dirty air filter, was the reason for the lean codes.. its been a week now. NO check engine light. NO codes. NO RP!!! my car feels brand new.. ![Icon Bike](https://www.jaguarforums.com/forum/images/smilies/icon_bike.gif)
Maybe its time for a tune-up?? if not.. - air filter, - fuel filter, - fuel cap,.. i would check any and all of those first before dishing out any money on anything TB related.. just my .02 cents.. Goodluck!!
![Icon Bike](https://www.jaguarforums.com/forum/images/smilies/icon_bike.gif)
Maybe its time for a tune-up?? if not.. - air filter, - fuel filter, - fuel cap,.. i would check any and all of those first before dishing out any money on anything TB related.. just my .02 cents.. Goodluck!!
Thanks unfortantly I already have put a new air filter,fuel filter, fuel cap, spark plugs, o2 sensor,MAF, ignition coils, and prob. anything else you can think of..the throttle body was last on my list but is comming up fast to the top!
#27
#28
![Default](/forum/images/icons/icon1.gif)
Short of jag's TOPIx, best place to get info on codes or indeed the rest of the car is JTIS.
Last edited by JagV8; 04-30-2011 at 02:20 AM.
#29
#30
![Default](/forum/images/icons/icon1.gif)
Yeah the plastic cover was off when I was looking for vac leak. The reason the oil cap was off in the pics was I had put the cover back on but decided I was gonna post a pic so I hurried and took the cover back off for the pic and just left the cap off during the pics.
Update I took the car out for a 200 mile run yesterday. The restried preformance nevr came on once, when is unual cos it has been staying on all the tim e pretty much. After the drive I checked the codes and the po171 was gone so I think this is why the restricted preformance was of. The po174 was on along with a po430. Are these 2 related?
Also I was remembered one of the end tabs that hold the air filter lid on is broke off. I don't think this is a problem but I went ahead and bout another air filter box ($65 off ebay with a extra MAF with it).Just nee to wait for it to get here.
Just curious if those 2 codes showing now are related?
Update I took the car out for a 200 mile run yesterday. The restried preformance nevr came on once, when is unual cos it has been staying on all the tim e pretty much. After the drive I checked the codes and the po171 was gone so I think this is why the restricted preformance was of. The po174 was on along with a po430. Are these 2 related?
Also I was remembered one of the end tabs that hold the air filter lid on is broke off. I don't think this is a problem but I went ahead and bout another air filter box ($65 off ebay with a extra MAF with it).Just nee to wait for it to get here.
Just curious if those 2 codes showing now are related?
#31
#32
#33
![Default](/forum/images/icons/icon1.gif)
Well I think I finally have a solid clue as to what it is. The throttle body! Here is why I think so... I never knew cleaning cleaning a jags throttle body was any different than any other car. So when I was giving the MAF sensor a good cleaning I got out the throttle body cleaner and went to town I sprayed it inside the throttle body and used a clean cloth to wipe it out... After thinking about it I realized this was when the p0171 codes started. then after reading tons of stuff I read you shouldn't clean them this way!
ANYWAYS I went ahead anf found for a good one with 50,000 miles on it for $90 so I grabbed it up.. Will keep you updated if this is it.
ANYWAYS I went ahead anf found for a good one with 50,000 miles on it for $90 so I grabbed it up.. Will keep you updated if this is it.
![Icon Hyper](https://www.jaguarforums.com/forum/images/smilies/icon_hyper.gif)
#34
#35
![Default](/forum/images/icons/icon1.gif)
Update engine light has been off since yesterday morning...I went ahead a checked the codes. It shows p0174,p1111.
Now that it is in p1111 what should I look for?
update yet again
I went out to hook up laptop to it started car engine light and restricted preformance again. I ran code I got
p0171
p0174
p1111
Now that it is in p1111 what should I look for?
update yet again
I went out to hook up laptop to it started car engine light and restricted preformance again. I ran code I got
p0171
p0174
p1111
Last edited by achysklic; 05-02-2011 at 04:21 PM.
#36
#37
![Default](/forum/images/icons/icon1.gif)
hopefully final update.
I put my new throttle body on today and drove her around awhile,so far no sign of p0171 or p0174. This is great news since it would throw the code before just about as soon as I would start it.
I am going to run it more and do some test,but keep my fingers crossed that the throttle body was the problem child!
I put my new throttle body on today and drove her around awhile,so far no sign of p0171 or p0174. This is great news since it would throw the code before just about as soon as I would start it.
I am going to run it more and do some test,but keep my fingers crossed that the throttle body was the problem child!
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