Still tuning

[87TIGN]

Ok so here is the story. Just put in Razors kit and I am havin some problems. I found that my car was running on a Bosch O2 sensor so I swapped that out for the correct ACDelco sensor. It seemed to run a little better on it so that is great. The only thing is that when I do a slow boost I get no knock at all up till 11-12 psi but if I hit it the car knocks pretty bad around 5-6 psi. Razor also told me this could be false knock and to try running the car in second instead of letting it shift. I saw a little higher boost with no knock but not much so I am thinking that it has to be real knock that I am seeing. So I decided to see what it would do on a little meth to just see what would happen. Turns out it knocks worse on meth for some odd reason. My BLMs when I am driving are about 123-127 and when I idle its about 128 never higher than 128 tho regardless of how I drive it. My O2 readings are even weirder. When I idle it is right at high 700's and low 800's but as soon as I put it in drive and go it drops to the 400-600 range. and when I idle in drive at a stop light it is at 039-052. So I added 3.5 degrees timing in 1/2 and 2.5 in 3/4 and added a little fuel in WOT overall to see if it would make any diff in the knock. It did't knock as bad but still did when I got on it at low boost levels. Its just weird that with meth it knocks like crazy. The injectors that are in my car have the code 0 280 150 218. One site claims them to be 27.5# bosch and GNTTYPE claims them to be 29.8# bosch stockers for the GN. So they most likely are the originals could this be my problem? Maybe they are dirty? Maybe they are too small for my mods and meth? (mods are at bottom in my sig.) I dont know what to do. I am very frustrated with this situation I just want my car to run right and be safe to run but I don't know what is going on let alone where to start to fix it. What should I do? Anything will help at this point.....

 

[87TIGN]

Plugs maybe?

I put in some ACDelco CR43TS's in late March and I know these plugs dont tend to last as long as regular ones because of the copper tips. So could my plugs be bad maybe? Maybe im not igniting at the right time or something? Just another possibility. I also have a new lower half of the ignition coil pack that I got from Advanced Auto and I am pretty sure it was a Delco part cause everything else I have gotton there for my car has been Delco. I got the top half from Full Throttle Speed a little bit ago it is there high output and since it is from them in there Turbo Buick section I assume it is compatible?

 

[Razor]

I dont think Advance carries AC Delco for ignition products. They sell Wells brand. They do sell AC Delco oil filters

That may be your culprit.

Ignition module will drive you crazy diagnosing.

See if you can find someone with a spare or lend you theirs.. or let you run yours on their car.. that way you can confirm you have a good part.

HTH

 

[87TIGN]

found one

Advanced has an ACDelco unit but it sells for almost 2 bills. Is that worth it to know that it will work out of the box?

 

[Razor]

Advanced has an ACDelco unit but it sells for almost 2 bills. Is that worth it to know that it will work out of the box?

I typically buy used complete assemblies here from board members. You can get a used assembly complete for like 100 bucks.. approx.

If I were to trust any new pieces.. the AC Delco would be my choice

 

[87TIGN]

Awesome thanks man. I am pretty sure that my old one is ok (thought i got rid of it but found it) I am gonna try it. I replaced it cause the paper gasket was all screwed up but I couldn't get the gasket alone so I figured that I would just put in the new assembly along with the gasket but finding out that it dosent work well unless its an ACDelco I will just take the paper gasket off the new one and try reusing the old one.