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Engine

Tiny
OSCARIN1
  • MEMBER
  • 2002 DODGE NEON
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 120,000 MILES
I just replaced the engine on my 02 dodge neon, everything is well conected, but it want star. Does the computer need to be reprogramed?
Wednesday, February 16th, 2011 AT 8:34 PM

3 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Is it the exact same engine, year--make--model? Where applicable, what about your security system? If it cranks good but won't start, have a helper crank it, while you check for spark at the plugs. If you have spark everywhere, use a gage and check fuel pressure.

Can you communicate with computer, check for applicable trouble codes?
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Wednesday, February 16th, 2011 AT 8:40 PM
Tiny
OSCARIN1
  • MEMBER
  • 2 POSTS
Yes, same engine and year model, the car, cranks but it want'n start, and them check engine light flashes like ten times and a code dobe and p1684 shows up!
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Wednesday, February 16th, 2011 AT 10:53 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Below are possible causes for that code and the flow chart.
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Thursday, February 17th, 2011 AT 5:22 PM

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