Runnin' Rich

[92 Ty 1173]

A couple questions.
1. Is there a way to adjust the mixture on these trucks. I think it's running rich. Got a bad gas smell when it is idling. I have a pitbull chip, hollowed cat and 3" tailpipe with 3 chamber flowmaster muffler.

2. Will the truck/computer benefit from a three bar map even though it is still stock?

3. I'm having severe boost spike with my exhaust opened up. I know it is a problem to begin with so I already invested in an ATR boost valve. I have it choked off so it surges to 15psi and then pulls steady at 10psi. Is there an easy/inexpensive way to fix this? I want to keep the truck fairly stock. I like kicking rustang ass and then telling them it's all "stock." It's been a while(2 years) since I've messed with the truck so I'm out of date with the goodies that are available. I was thinking Ultimate. Yes/No?

 

[cloneman315]

Re: Runnin' Rich

those atr chips suck they will make it over boost as well as your exhaust mods,you are gonna have to adjust your wastegate rod to get your boost right,contact phill l turbo 6 for a 3 bar stock truck chip and u will be happy ,and get a wbo2 or datamaster assuming u have done the basic tune up mods first,plugs wires cap rotor fuel pump reg etc hope this helps.

 

[93TyGuy]

Re: Runnin' Rich

There are a number of things that could be going on. My ty had a hollow cat and it smelled of fuel after a few jaunts, but it was pretty mild. It could be your canister purge solenoid not actuating and dumping your fuel vapors properly into your engine. But its tough to say. As far as adjusting your idle mix its not as simple as carburetors. You may have an injector thats sticking open from carbon build up, in which case you should run some BG 44K if you have access to it, that or GM Top Engine cleaner, to clean out your fuel system. I hope this gives you some ideas and or some help to fix your truck.

 

[jwaller]

Re: Runnin' Rich

you need to port the wastgate if you run an open exhaust, that will fix your boost problems.

 

[InvisiBill]

Re: Runnin' Rich

The others seem to have the other stuff covered, so I'll cover #2.

NO.

You need a 3 bar chip to use a 3 bar sensor. Using a chip and sensor, one 2 bar and one 3 bar, will cause problems. The boost levels that the chip sees will be be all wrong, which will cause incorrect fueling. Using a 2 bar sensor on a 3 bar chip will make it see more boost than it's actually getting, so it's sort of like a "limp home" mode. Using a 3 bar sensor on a 2 bar chip, it would always see less boost than it's actually getting (the sensor would have to see 30psi for the chip to see 15psi), leading to inadequate fueling, which would probably lead to a new engine.

 

[92 Ty 1173]

Re: Runnin' Rich

,you are gonna have to adjust your wastegate rod to get your boost right

On the chance of sounding stupid how do I know if the wastegate needs adjustment and if I do adjust how do I know it is right? I checked it when I replaced my pass. side manifold and it closes completly and opens smoothly. Should I try removing the ATR chip and put the stocker back in? I haven't replaced the fuel regulator yet but is it that necessary with a stock truck?

"you need to port the wastgate if you run an open exhaust, that will fix your boost problems"

And what is the proper way to do that?
Thanx for the help, like I said it's been a long time since I've done much with the truck. 2 years it sat with a cracked exhaust manifold.

 

[92 Ty 1173]

Re: Runnin' Rich

No one else has any other suggestions? Please help!

 

[cloneman315]

Re: Runnin' Rich

that atr chip might make it over boost mine did,i would put the stock one back in, anyways them atr chips suck ,put the stock one back in do the basic tuneups and get it running right like it was fully stock then tweek it,and get that boost problem fixed first

 

[Flyin Ryan]

Re: Runnin' Rich

that atr chip might make it over boost mine did,i would put the stock one back in, anyways them atr chips suck ,put the stock one back in do the basic tuneups and get it running right like it was fully stock then tweek it,and get that boost problem fixed first

atr pitbull chips have the overboost error removed so if you are overboosting it's not gonna set a code or anything, well at least that's how it is with my atr street chip. On my truck I have my wastegate set so I can run 17lbs.. it'll spike to 18lbs in wot at most.

Also the atr chip have been proven to run more rich then the stocker so that maybe your rich condition issue right there. Do like others have suggested.. go back to stock chip. Get the truck running right then do a custom chip for use with a 3 bar map and that would give you the best insurance against overboosting in the future.