mustang93

iTrader: (7)

Ok I just bought another TA. This ont is a 93 Ram Air car. The car runs super good except when it's under a load it kinda spits and sputters at about half throttle..? When I get on it it will spit a little and if I keep in it it will clear up and go. I can rev it as far as I want when it is park and it revs nice and smooth... I replaced the plugs toady and noticed that only the pass side 4 were black like it is running rich. But the drivers side looked just fone not black at all.?? Why would it be acting like this? Thanks for your help

9formula4

iTrader: (5)

Change your O2 sensors. This is what mine did when they were bad. An easy way to check them is to unplug them and see if the problem persists.

mustang93

iTrader: (7)

So If I unplug them the prob. should go away? And if it does I know thats the prob.?

9formula4

iTrader: (5)

Yes thats the way to check it. You are keepng the car in open loop and not letting the O2s take over (closed loop). This will etermine if it is infact the O2s. I did it on mine and it solved my problem.

The only other thing it could be is a weak opti.

Sounds more to me like the O2s like mine though.

mustang93

iTrader: (7)

OK.. I unpluged the o2's and it is not doing it anymore.. But it sure looks like a pain in the *** to get the o2's off. My car has an aftermarket y with Hooker headers. Any way around it?

Formula350

iTrader: (3)

Pff, try doing the pass side with stock manifolds -_- I nearly shredded my right arm. Nice find on the Firehawk though (unless it's just ram air done by the previous owner).

mustang93

iTrader: (7)

It's an orig Ram Air car.

Formula350

iTrader: (3)

Then it's a Firehawk and is a rare find.

mustang93

iTrader: (7)

Is there any way I can go without running o2's?

infinitebird

iTrader: (11)

Well you can but it wouldn't be a good idea because you will run rich and your gas mileage will suck.

mustang93

iTrader: (7)

I think I am going to buy some this week and put them in...

infinitebird

iTrader: (11)

good idea, and buy ac delco ones.

mustang93

iTrader: (7)

Ok.. Thanks for the help

9formula4

iTrader: (5)

i have mine running with no O2s right now and it doesn't get to bad of mileage. I am buying new ones this week also.

9formula4

iTrader: (5)

also just because it is ram air DOES NOT make it a firehawk. The 93 TAs came with ram air also.

infinitebird

iTrader: (11)

well, running without the o2 sensors is pretty much a toss up. It really depends on the conditions. The o2 sensors allow the computer to compensate for changing conditions so without those it just uses the internal defaults for the reading it gets from the MAF. But if the weather etc is such that the air properties are similar to what the internal calculations are, then you might not see a significant reduction. I can tell you though that running in open loop in a hot/humid climate my gas mileage sucked.

9formula4

iTrader: (5)

yea I did lose a little mileage today because it wasw HUMID as HELL. But on normal days it is still decent for being a cammed motor.

transam5.7lt1

iTrader: (18)

There are no original ram air cars in 1993.... no matter how original they look.... it may have borrowed OEM parts from a 1996 WS6 car, since THAT was the first year of the factory ram air... which was the WS6 package. Thats why Formula350 keeps on passing it as a Firehawk, since those were the only ram air birds that came to the market as ram air model, which were converted by SLP.....

Formula350

iTrader: (3)

I wasn't aware Ram Air came about till 96. Save Firehawks.
And I know ram air doesn't make a Firehawk. I just don't think it's factory ram air. I was subtly giving him crap.

EDIT: Didn't see Transam's post. He got the picture.

transam5.7lt1

iTrader: (18)

Hey! We're all learning here! Hehehehehehe I am just a TECH Enthusiast with the post number of the devil! 666 I see you are a TECH Addict with a lot of posts