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-   XJ6 & XJ12 Series I, II & III (https://www.jaguarforums.com/forum/xj6-xj12-series-i-ii-iii-16/)
-   -   tweaking idle - slight heistation (https://www.jaguarforums.com/forum/xj6-xj12-series-i-ii-iii-16/tweaking-idle-slight-heistation-61419/)

pdog2000 09-28-2011 12:32 PM

tweaking idle - slight heistation
 
hi all - i've been fix some things on my car and now have a slight idle issue when the car is in drive with the brake pedal pushed...it is all started after a fixed my vacum leaks...so the car idle's fine, but when i am at a red light and start to hit the gas it heistates a little bit before she gets moving...it doesn't come close to stalling out, just the RPMs drop a bit, and it is very noticable...any ideas what adjustment i can make to compensate for this?

ken@britishparts.com 09-28-2011 04:24 PM

Check the accordion hose and the smooth rubber hose that attach after the air flow meter and to the throttle body for leaks. I had free air coming in there that caused much the same thing. On the accordion hose, look down in each crevice.

pdog2000 09-28-2011 04:37 PM

actually that was one of the areas i fixed...although it is pretty rotted out and i ordered a new one from jagbits...i also have more info, the issue goes away when the car is warm, so i am pretty sure it is the temp sensor that is telling the car it is warmed up when it is not...does that make sense?

Doug 09-28-2011 08:30 PM


Originally Posted by pdog2000 (Post 410437)
actually that was one of the areas i fixed...although it is pretty rotted out and i ordered a new one from jagbits...i also have more info, the issue goes away when the car is warm, so i am pretty sure it is the temp sensor that is telling the car it is warmed up when it is not...does that make sense?



Yes, it does....it would cause a lean condition....sorta like an older car where the choke wasn't working right

Cheers
DD


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