04 land rover discovery hse
valve covers replaced
put together everything started vehicle rev to 2 grand held shut off vehicle started again 2,000 rpm and held and then to 3,000 rpm. tps was at 1.0 volts koeo replaced tps seem to run fine then coolant pushed out of tank forgot to bleed shut off cooled it down added coolant bled system ran ok back vehicle out of shop sat for an hr came back started vehicle began to lope shut it off let it sit ive triple checked all steps i took took smoke machine to plenum no leaks. had po101 po505 po171 po174 any knowledgable help please no guessing not holding any one reliable just wanted more knowledge on what the hell would of went wrong here please call 717 226 6076 sorry for the slur of text but can explain more on phone thanks

 

put the codes into
http://enginecodemaster.com

LIke P0101 or such.

 

Might be helpful..

https://landroverforums.com/forum/di...1-p0505-45643/

 

Have the code etc the vehicle came in for valve cover gaskets replaced install went great but somewhere it turned into a can of worms. It runs but lopes and no steady idle. I've smoked the intake no leaks found I put a new tps sensor in because voltage was high at koeo. It seemed to help but backed vehicle out and let sit went to start and it began to lope and threw those code I'm smacking my head against the wall idk what went wrong

 

Running lean. You sure there isn't a leak like with the manifold gasket? Also, check the MAF and maybe shoot it with MAF cleaner. If it is under reporting air the computer might compensate creating a lean condition. Look for vac leaks you can't see with the smoke.

 

I certainly DO NOT mean to be a jerk about this, but the very first thing that comes to mind is: Did you by any chance inadvertently swap the cruise control and throttle cables at the throttle body? I'm just thinking it is probably something simple.

 

Also, triple check you didn't rip the intake boot or attach it too loose. Codes for MAF, lean in both banks, etc all point to something like that.

 

Oh yeah...first check the air idle control. Likely you messed up something with that or the Intake. Should have thought of that first, and that is a code you are throwing.

 

I had similar issues a few times. The first time it was my MAF and the second ws after I did my HG and missed a vac line. Where in Pa are you?

 

The IACV has two different size hoses, but it can still be installed backwards. If you fought getting one side back on, while the other side seemed loose, recheck. Good luck