Question about 1995 Dodge Caravan
Code 12 is: Direct battery input to PCM was disconnected within the last 50 key-on cycles.
Code 21 is: Neither rich nor lean condition detected from the oxygen sensor input or oxygen sensor input voltage maintained above the normal operating range.
Posted on May 23, 2008
This design has no tensioner. Check the sprockets for wear on the tips--especially the crank sprocket. With the cover off, turn the crankshaft with a socket and see how close the chain comes to slipping backward on the sprocket. There are complete replacement procedures at AutoZone.com, which I will try to paste in below.
3.3L and 3.8L Engines
See Figure 18
Fig. Fig. 18: Timing mark alignment-3.3L and 3.8L engines
Posted on Aug 29, 2010
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