I finally took the TPI 383 on it's first highway trip (runs surprisingly well I must say!)
At about the 40 mile mark the SES light came on. It ran the same as it had the first 39 miles so I kept driving it to my house, 5 miles later. I checked the stored codes and got a 12 (normal) and a code 52 (something about a CALPACK error?) From what I've read it could simply be a memcal that is not properly seated or it could be a bad ECM........But the engine seems to run pretty well. Has anyone else had to deal with a code 52??

I'm running a 730 ECM with a PROMinator and modified AXCN.bin

Thanks for any advice!
R

Nobody out there has run into a code 52? I just find it interesting that there is a code but everything seems to be working fine. Any opinions?
thanks!

Im getting the same code,I have a 1989 chevy fullsize blazer and I went and put a holley tbi on and ran like crap.talked to holley for hours and the guy there even said there junk so I put the stock one back on and now im getting a code 52 and when I get into the motor the valves knock.I thought it was the ecm so I went and bought a new one and still does the same thing.I do have a MOTORVATION performance chip in it,so I thought that might be it so I put the stock one back in and still have the same trouble.I'm lost now dont know what to do now.Any info I would be thank ful

code 52 is the code for oil temp sensor for the corvette
engine (AXCN prom), f-body do'nt use this code (AUJP prom),
uncheck code 52 and code 62 in the bin and it'll be ok.

w/t1500

I changed the calpack on the ecm now Im getting a code 55 witch is the ecm,but its soooo weird that the truck will run fine till i go to step on the gas and try to pass.the vavles tap and the light comes on.I did change the ecm and it didnt come with the chip or the calpak so i use my old one and the code 52 came up so i thought it was the calpak,I took the ecm back ,I guess i need to try a ecm again wiith the new calpak ,Im thinking the ecm and the calpak went bad