97blKM6

Hey everyone, I have a 00 Trans-am with HC package, automatic. here's my problem the car is sputtering, cutting off. it's almost like bad wires or something but I done changed the spark plugs and wires already and its still doing it. at the same time the car is sputtering the tachometer goes out completely and then after a while it while finally come back on.... I will appreciate any help. Thanks!!

*98TransAm*

is the check engine light on? did you ever have a tune after the heads and cam?

Flaring Afro

sputtering could be from clogged throttle body, maf, and/or filter. with the tach though it seems like it could be electrical perhaps?

97blKM6

I actually dont know because I bought it from a buddy with the heads and cam already done. but yeah the check engine light is on, but it's been on since I bought it because of the wrong Intake manifold on it, the engine is actually from a 2001 Camaro SS, and some dummy took the LS6 intake off and swapped it with one from an earlier model.. do you think this could be causing some kind of effect?

jsteele90

iTrader: (13)

nope. it sounds like a ignition problem to me

97blKM6

Yeah it could be, it's poppin pretty loud too, do u think the timing could be off?

Swiat34

iTrader: (9)

I bet it's a coil pack. My V-6 Bird was doing that and could barely make it up the slightest hills on the highway. Check to see if you have spark at all of your plugs. If one (or more) isn't sparking, it's likely the coil pack(s).


Swat

97blKM6

So u think I should get all new coil packs? its worth a try i'll try just about anything right about now lol! but thanks I'll be sure to check them out tomorrow

WhiskeySierra6

iTrader: (2)

You might want to check the front O2 sensors as well. If the A/F ratio is off that could cause problems that are similar to what you're describing.

Swiat34

iTrader: (9)

NO NO! Don't just go get new ones. Pull one plug at a time and ground it while someone tries to start the car to see if it sparks. If it does, put it back, it and the coil are fine, then try the next plug and so on. If they all spark fine, you have more serious issues likely timing or fuel related ie a clogged fuel filter. If one doesn't spark, inspect the wire and it's connections to insure it's go contact. If all that looks kosher, the coil pack may be bad. Switch that one and another around to make SURE the wire and plug are fine. Then replace the coil pack with a used one from a junk yard to save $$.

Swat

Swiat34

iTrader: (9)

Well, we figure anything out other than that the post got moved?? LOL Poor OP probably can't figure out where his post went if he wasn't subscribed!

Swat

Josh Nickelsen

iTrader: (9)

I would say before you throw anymore parts at it to get the codes scanned some how. Even if the engine light was on before it will still show all the codes it is throwing. At least you have a starting point. The other idea's given aren't bad but that is where I would start.

97blKM6

Ok everyone I appreciate the help really!! I'll give everything a try you all said and i'll get back and let everyone know what happened!!

97blKM6

ok I let some of my buddies at Wal-Mart scan it for some codes(check engine light), and the two codes that came up was the Crankshaft Postioning Sensor and Throttle Postioning Sensor... anybody recognize these error codes?

97blKM6

any Ideas??

Abe99

iTrader: (2)

I have a similar problem, let me know what works for you.