multiple code

[insane6]

Working on dads 86 Ttype and was all stock 42000 miles, except turbotweak chip and the car was running fine.
I replaced valve springs(comp 980), and removed intake to paint and reinstall power plate, I put in my old Turbotweak 60 # inj. and chip (that was fine when taking out of my car 87 GN) , and RJC 3" downpipe .
I'm now getting codes 34 and 35 before I start it with key on , and after I start it i'm getting codes 34, 55,53,51,44, also the IAC is reading 00 on SM and will not move with any adjustment.
I tried 3 different chips , no change
Replaced computer with known good one
Replaced maf off my car( LS1 with translator) and 3 other stock MAF I had
Replaced IAC off my car(brand new) no change
Change O2 sensor (used but what the heck)
Replaced EST with new one , removed code 42
Cleaned all ECM connection best I could with eraser and contact cleaner
Replace coil pack and ign. module with known good one
Cleaned positive and negative cables on battery
At one time I was showing codes 33,34,41 before I started the car
and 34,54,53,52,44,41,42
Car runs smooth and idles fine , and presently NO CHECK engine light
just codes 34,35 before starting and codes 34,55,53,51,44 after starting ?
Any suggestions ?

 

[TurboBuRick]

Working on dads 86 Ttype and was all stock 42000 miles, except turbotweak chip and the car was running fine.
I replaced valve springs(comp 980), and removed intake to paint and reinstall power plate, I put in my old Turbotweak 60 # inj. and chip (that was fine when taking out of my car 87 GN) , and RJC 3" downpipe .
I'm now getting codes 34 and 35 before I start it with key on , and after I start it i'm getting codes 34, 55,53,51,44, also the IAC is reading 00 on SM and will not move with any adjustment.
I tried 3 different chips , no change
Replaced computer with known good one
Replaced maf off my car( LS1 with translator) and 3 other stock MAF I had
Replaced IAC off my car(brand new) no change
Change O2 sensor (used but what the heck)
Replaced EST with new one , removed code 42
Cleaned all ECM connection best I could with eraser and contact cleaner
Replace coil pack and ign. module with known good one
Cleaned positive and negative cables on battery
At one time I was showing codes 33,34,41 before I started the car
and 34,54,53,52,44,41,42
Car runs smooth and idles fine , and presently NO CHECK engine light
just codes 34,35 before starting and codes 34,55,53,51,44 after starting ?
Any suggestions ?

Wow. Thats allot of codes.

If you put the old chip in, does it still throw the code 34 and 35 before you start the engine?

 

[insane6]

yes stock 28 #inj turbotweak
2 60# inj turbotweak same codes

 

[TurboBuRick]

All those codes indicate either a bad prom or bad ecm.

 

[insane6]

When I get out of class for work I'll try the computer out of my car

 

[1qkgn]

Check the pins on the prom. They might have bent and are not making contact.

Also check your grounds.

Paul

 

[Eric Stage I]

See if the chip has the fast update option. If the scanmaster is a 2.0 version, it won't be compatible.

 

[insane6]

Eric it is a older 2.0 scan master , the chip I'm using is 5.6 verison 60# that was on my car you burn the stock 28# inj chip for my dad that was 5.6 and it wasn't throwing codes
so what do I need to correct codes ?
New SM or send in chip ?

 

[Eric Stage I]

We must have put the fast update for the sm2.1 in the chip. I can swap you another chip with the stock datastream if you want. Just let me know what the chip# is. If you want to keep the the fast update, there is a version of the code for a sm2.0, but you'll lose the IAC and CC reading (as I recall). Option 3, buy a new scanmaster 2.1.

 

[insane6]

Gonna buy new scanmaster