Pos car ahhhh

[mustangflanagan]

It was weird kinda scared me i got in the car this morning and as i was leaving the car didnt want to pic up any speed or rpms. exactly like if you try to drve the car in like a high gear at low rpm,s and low speed it did it twice so i pulled over and let the car sit for a bit(car running) then car is back to normal i think this may have to do with my shudder issue while cruising could it be the cats took a shit stock cats same cats when the stock motor blew up or can they be clogged? Is there a way to check this. The only other thing i can think of is the spark plugs and advice would be great.


The car is procharged with a built shortblock pushing 11 psi.

 

[dysan]

Dude...if those cats were on the car when the engine popped, remove them ASAP. They are probably clogged up and with the supercharger you've got another time bomb waiting to happen.

Get them out NOW!!!!!!

 

[05roush0090]

Are you running a MAFIA?

 

[19COBRA93]

If your cats are plugged it would be doing it all the time and would be way down on power.

Are you running a new tune? My car runs like that when it's cold because my tuner was having some problems getting my new injectors to respond during open loop (or closed loop, whichever it's in when it's cold). So he's working on a new tune for me. When the car is cold and I try any type of part throttle load, it just feels like its running out of fuel.

 

[mac10chap]

agreed. my car is procharged as well and needs about a minute or so after start up to run right. If I try to drive immediately after a cold start, it feels like I am riding a bucking bronco.

 

[GrnBullitt08]

I would remove the cats.

 

[mac10chap]

I would remove the cats.

+1. and leave them off.

 

[05bluestang]

It's your tune. Mine does the same thing when it's cold (and I do not have cats on it). Gotta let it warm up a little before driving.

 

[mustangflanagan]

, Ihave a mafia on it. If I take the cats out would it be ok to drive without a new tune till I get to a dyno

 

[mac10chap]

, Ihave a mafia on it. If I take the cats out would it be ok to drive without a new tune till I get to a dyno

yeah, you'd be throwing codes for the rear O2 sensors though

 

[dysan]

I'm pretty sure the rear o2's are turned off. I believe Chris Rose does that unless someone asks for them to be left on.

 

[808muscle]

Stock cats........scary. My car has to warm up for 30-60 seconds or it will stall(auto trans) since I installed cams.

 

[HOLYWD]

Stock cats........scary. My car has to warm up for 30-60 seconds or it will stall(auto trans) since I installed cams.

Those cats =