Tag: C4

Throttle Body maintenance 101: READ THESE INSTRUCTIONS ENTIRELY BEFORE STARTING THIS PROJECT! (YOU WILL NEED A DIGITAL MULTIMETER IF YOU TAKE THE TPS OFF! DON’T ATTEMPT TO REMOVE THE TPS IF YOU DON’T HAVE ONE, IT IS MANDATORY!) You should also buy the gasket kit from GM that includes the 4 gaskets and costs about […] More »

In June of 03 I attended a C4 workshop at Bloomington Gold taught by Ron Kane and Gordon Killebrew. When asked the question: \”Which tires are best for all around use on the C4?\” They both stated that their customers and clients seemed to be very happy with Firestone Firehawks. They have great traction, good […] More »

I have an automatic, 93 LT-1 that I autocross. The course that I was running was low speed and I could run in \”L\” range and stay off the rev-limiter. While staging in my next to last run, I found that the automatic transmission was not shifting until 3500 rpm, unless I would take my […] More »

Full illustrated instructions found through this link: http://personal.tmlp.com/scorp/vette/images/ujoints/index.html

Background The \’85-\’89 L98 uses an Electronic Spark Control (ECS) module to listen to the Knock Sensor and report ping to the ECM (on \’90-\’96 Corvette motors the ECM listenes directly to the Knock Sensor). When the ECM detects knock counts it pulls timing till no knock is reported and then gradually increases timing to […] More »

Someone posted this a while back in C4 tech. Corvette VATS Key Codes and Associated resistance Codes in OHMS Pellet Resistance Code Ohms 1 – 402 2 – 523 3 – 681 4 – 887 5 – 1130 6 – 1470 7 – 1870 8 – 2370 9 – 3010 10 – 3740 11 – […] More »

While replacing the battery in a \’92 I noticed that the large harness that runs behind the battery tray had the wire loom worn off by rubbing against the rear of the battery tray – this tray has a lip that is rather sharp. Before any wires were frayed, I decided to repair the wrap […] More »