Bullydawg

iTrader: (7)

Any Ideas. I think it could be the vacuum lines. I have heard that the Super Rams runner gasket was bad areound 2003 which is when it was installed and would cause a vacuum leak. Does anyone think this could be the problem? No codes either. Any idea's would help. I am also getting around 9 MPG when I should be around 15-17 in the city. Could this be the vacumn lines? I am also running rich. Anyone have a problem like this? My engine is modded and everything has less than 10,000 miles on it. My specs are in my sig. Any tips are apreciated.
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The engine is still surging. All the sensors have been replaced also, so that can be checked off.

Bullydawg

iTrader: (7)

I need to know by today so I can order the parts and fix it this weekend. Any help apreciated.

formula_novice

iTrader: (1)

I am having the same kind of issue with my setup.

So far, I have been told the following solutions...

1) Since switching to headers, they take longer to heat so I need to get a heated O2 sensor. I tried this and it didn't make much of a difference in my setup.

2) I talked to a guy at TPIS yesterday and he said to mark the throttle body position screw's current location and then turn it a full revolution one way or the other. If the car responds better, then you will have to reset the TPS sensor. I'm not sure if this will help or not... I haven't had time to try it yet.

If the motor was stock, I would suggest checking your IAC sensor. However, I assume from your post it was replaced.

Are your Accel 24# injectors new? I would check them with an ohm meter and see if any of them are out of spec. My Accel 24# injectors didn't last long... if you search the forum, you will see numerous posts complaining about them.

If you suspect a vacuum leak, I would definitely check the hoses.

Sorry I don't have a more concrete answer for you, but I hope this helps!

Bullydawg

iTrader: (7)

Yeah, they are new. I will try that. I heard in the one thread that the super Ram had a bad gasket causing a vacuum leak. I think I will try that. My car runs really good, it is just getting bad gas mileage and it wont idle until it is warmed up for a minute. It also surges though. So I am not sure.

Bullydawg

iTrader: (7)

It runs great when it is warmed up. I am just really wanting to fix the idle and get better gas mileage. formula_novice, are you also not getting as good gas mileage as you should be getting. Are you also surging.

Dirtbik3r

So it is running better in closed loop... I don't think your o2 sensor is taking to long to heat up because open loop doesnt cause a poor idle. Is it throwing any DTC's? Do you have a misfire?

Bullydawg

iTrader: (7)

No, seems to be running fine. I had a check engine light in december, but it disapeared. Hasn't came back for around 3 months.
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My main problem is the gas mileage. It isn't that bad warming it up for a minute, the gas is killing me though. I would like to fix both of them. Mainly the gas mileage though.

formula_novice

iTrader: (1)

I haven't had mine on the street long enough yet to tell what kind of gas mileage I'm getting. Although I would guess that, with all the goodies I put on, its probably not that great

My car does surge - especially when cold. I'm still working on fixing that.

I see you had a custom prom burned. Has that prom been adjusted for your 24# injectors?

Bullydawg

iTrader: (7)

yep, it had the same problem but worse with the stock prom.

Bullydawg

iTrader: (7)

Well, while fixing an oil leak, I have my headers open and I found out that firecomes out when I start it with just headers no y-pipe. Could the timing be cause all these problems?