missing under throttle

[83 intercooled]

OK the miss started off almost unnoticeable and it will do it cruising under some throttle went out to drive it today and it started to get worse and then bad it hesitating off idle and breaking up bad now any idea what this can be any help appreciate

 

[83 intercooled]

Scan master numbers
O2 875-890
Af 07-06
L8 41-44
Bat 14.5
Int 128
Bl 125
Mph 00
Clt 165
Ats 65
Rpm 850
Tps .42
Iac 35-39
Cc 93

 

[83 intercooled]

And when it is sputtering o2s 111-220 If this helps just changed plugs and still doing same thing

 

[turboclam]

Mass air flow? Coil pack/module?

 

[83 intercooled]

I have a lt1 maf and translator pretty new coil pack but module unknown how old

 

[dank GN]

I had Same issue it was the MAF and the coil pack fyi

 

[1fastcobra]

Ohm your wires !!
Ck for a bad plug
Or injector

Posted from the TurboBuick.Com mobile app

 

[83 intercooled]

So I will look into a maf and coil and hope this solve my problem

 

[83 intercooled]

Wires was good change plugs today how can I check the injectors

 

[notacarlo]

Go buy a replacement 02 and slap it in. God knows how many I've gotten from the crap stores that failed right out of the box. When it stumbles do you get a check engine light....and maybe at cruise it goes away?

currently cutting it the F loose

 

[83 intercooled]

No light come on it tries to clears up the harder I run it but it hard to drive it normal with out giving it gas

 

[notacarlo]

02 crosscounts (CC) at cruise and when it stumbles.

currently cutting it the F loose

 

[83 intercooled]

Not sure can check tomorrow and post the numbers

 

[83 intercooled]

I know the o2 number drops all the way down to the 100s when It stumbles

 

[TurboBuRick]

Throw it in batch fire and see how it runs.

Rick

 

[CGASTON]

Sent PM

 

[83 intercooled]

The cc showed 181

 

[aminga]

The cc showed 181

Was it climbing

 

[TommyV8]

How does it run under boost?

 

[83 intercooled]

Yes it got to 19#. under boost it clears up but feel like it lost power tho