LT1 problem...NEED HELP...

**YANK-ME** · 09-02-2008, 04:52 PM

Its a 94 Z28 auto.
Problem:
It feels like it wants to stall out at a light on D. the RPMs stay around 800 then drop to 500 then back to 800.
At part trottle it just jurks, it does not go anywhere at WOT. It also smells like its running rich. I dont know where to start (spark plugs checked, wires checked they look okay)
How can I tell if the Opti is about to go? Fuel Injectors?
Can the TPS cause this problem? Car starts right up no problems.
Car has 140K miles on original Opti. Mods are CAI, TB, Full Exhaust. as far as I know everything else is original..I changed the Fuel Filter already.
I really dont know where to start here (no SES light) dont really know if its trowing codes. Any Ideas NEED HELP..
Thanks for any suggestions...

**98 Stang Killer** · 09-02-2008, 05:17 PM

hey what you mean by doesnt go anywhere at wot, like not moving or moves slow

**YANK-ME** · 09-02-2008, 05:33 PM

It just kinda jurks like it wants to go but does not... RPMs go up but it hesitates (sp) normal driving feels okay. Checked for vacuum leaks already, didn't find anything out of the ordinarry.

**98 Stang Killer** · 09-02-2008, 05:36 PM

did yall reprogramm for the tb

**YANK-ME** · 09-02-2008, 05:39 PM

Originally Posted by 98 Stang Killer

did yall reprogramm for the tb

What do you mean???
the TB is a 58mm I think and It came with the car so not sure....
Could be the TPS. Do you know a way to check that.

**98 Stang Killer** · 09-02-2008, 05:44 PM

oh ok, not sure but autozone can print out on ow to check it, and my dad said also the 94 models were known to have opti problems but hes not sure how to check it

**YANK-ME** · 09-02-2008, 05:48 PM

Yeah Im guessing is a bad plug or wire or OPTI...
Those damn plugs are a nightmare to change on that car...

**98 Stang Killer** · 09-02-2008, 05:55 PM

hell yeah drop the y pipe makes it easier to go underneath

**YANK-ME** · 09-02-2008, 05:58 PM

I thought about removing the damn headers but the bolts are so damn small Im afraid ill break them and I can't even put wrench on them (no room)
I thought my 01 SS was a nightmare to change plugs

**98 Stang Killer** · 09-02-2008, 06:09 PM

yeah they are a pain on them lt's

**YANK-ME** · 09-08-2008, 03:45 PM

FIXED...It was a damn spark plug wire, the headers burt thru the heat sleave and burt the wire.
Put a new wire with sleave and took a different route to the Opti...
It's all good for now...