Need help with my Z

[hit5ive]

Recently my Z skipping, stuttering, missing, etc. I took it to a shop and the mechanic diagnosed the problem as a bad fuel injector. Because the injectors are hard to get to I replaced all of them. Running a little better now but still missing. Another guy told me two of my coil packs were bad. Replaced those...still missing.

I need help diagnosing the actual problem before I spend anymore money on parts.

Oh my Z is a 1993 Z32 N/A

Thanks

[Z31toZ32]

run the codes, post what comes up.

[hit5ive]

I'm not getting a check engine light, would it still throw codes?

[aroche25]

Click this link (http://www.ttzd.com/) Click tech and then ECU Diagnostics and it should help you pull codes.

[hit5ive]

Thanks, i knew the location of the ecu but didn't kno it gives out codes like that

[hit5ive]

13 34 42 43....fml

[aroche25]

13 34 42 43....fml

Ouch man
13-Engine Coolant Temp. Sensor
34-Detonation Sensor circuit - aka Knock sensor http://www.angelfire.com/geek/vg30dett/ ... Rel01.html
42-Fuel Temp Sensor circuit
43-Throttle Position Sensor circuit - tps-setting-t416034.html

Hope the links help

Funny thing is I had 13, 34 and 43 when I first got mine. The sensors typically have a bad connection or have just gone bad, so If they are cheap just replace.

[hit5ive]

Been tinkering for a lil bit now I'm just getting 13 and 21

[hit5ive]

I'm thinking my PTU is going bad. I removed it, cleaned it slightly and put it back in. Ran better better but still some misfire.