Timing chain replaced, can't get engine to idle now runs terrible. Please Help!

Tiny
JPMERONEK
  • MEMBER
  • 1997 CHEVROLET S-10
  • 4 CYL
  • FWD
  • MANUAL
1997 Chevrolet S-10\Isuzu Hombre Engine Troubles 2.2L I4, distributer-less ignition.

I recently blew my timing chain and, of course replaced it. After replacing it, I started it up and it ran like it was missing a cylinder. Thinking I mis-aligned the timing marks, I re-did the timing, just to make sure everything was lined up. Still, no change.
While trying to start the truck, I need to depress the gas. Once started it idles rough (800-1200rpm). Still runs like it is missing a cylinder. Driving has no power and when engine is warm, truck will not idle(dies).
After checking that I didn't unplug anything and that the sparkplugs are still good, I drove it down to the local auto parts store to see what codes came up. I also unplugged the spark plug wires, one cylinder at a time, to see if I can isolate an individual cylinder, but engine ran the same with each cylinder disabled.
I have checked to ensure plug wires are still connected, all of the connectors are still plugged in and not corroded, and hoses connected.
I took it all apart to make sure I got the timing right and didn't accidently go a tooth out of phase again. I also checked the resistance and power input to the coils and sensors, where Haynes had specs for them. Everything looks as it should.

The diagnostic codes that came up were:
P0300 - random misfire
P0113 - IAT sensor circut high input
P0141 - O2 sensor heater circut fault (Bank 1, Sensor 2)
P0341 - Camshaft position sensor circut
P0342 - Camshaft position sensor circut, low voltage
P1441 - EVAP system flow during non-purge cycle
P0502 - VSS circut low input

Any recommendations on what I can do to get the truck back to working order?
Wednesday, February 23rd, 2011 AT 3:53 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Make sure your connection to the cam sensor is good and connected though. This can also be a battery problem as well but I dont 'think so. If you have one of the performance air cleaners that can cause the IAT problem but make sure your air ducts are connected and no holes in them.
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Wednesday, February 23rd, 2011 AT 6:36 PM

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