Need help with 03 GT - Hyundai Performance Forums

havlikda · 10-24-2007, 10:44 PM

I bought my 2003 tiburon GT w/ 6spd it ran fine for a few months. Then I decided to try and top it out and ran out of road around 125 mph. A couple of days later my car started acting up and was doing some really weird things. I would try to go down the road and it would act like there was no power and would hit hit around 4500 rpm and then act like it went into a limp mode and woudl go as high in rpm again until I had shut the car off and disconnected the power for a few minutes and then it would do the same thing. The check engine light would come on and off as I drive and try to hook up a scanner to the car and would not read (fault of dealership when wired OBD 2 plug put 5 pin in wrong slot.) got that fixed and the codes that came up were
1602 Serial Communication problem with TCU(timeout)
1166 Lambda bank control limit. (Bank 1)
1167 Lambda bank control limit. (bank 2)
0154 HO2S circuit no activity detected. (Bank 2 Sensor 1)
0160 HO2S circuit no activity detected. (Bank 2 Sensor 2)
0140 HO2S circuit no activity detected. (Bank 1 Sensor 2)

I need the help to figure this out. it seems to run a little better by unpluging one of the oxygen sensors but doesn't help very much.

hyundaiFixer · 10-31-2007, 01:36 PM

1602 on a 6spd?? TCU is the trans control mod.

there is a list of things to check for the 1166/1167. How many miles are on the car? If under 60k i'd take it to the dealer....

have a hard time starting after you fill it with gas?

havlikda · 10-31-2007, 11:42 PM

Yea a 1602 code on an 6 spd I didn't believe it myself but yea it is there.
There is 79000 mile on the car. And no problems starting the car at all.