94 Viper Engine Light On And Turns Over But Doesn't Start

[94 Tom]

My 94 Viper with 28,000 miles has the engine light on and turns over but doesn't fire up. When this originally started about a year ago I was able to start it by going through the "system self-test" in the "vehicle theft security system" section in the 94 viper service manual. This included cycling the ignition key three times, opening each door and turning on the interior lamp. It worked for a while and now it doesn't and my engine light stays on. I can't find a scanner that will read the Gen 1 Viper so I did the system diagnosis by turning the key on 3 times and watching the count of the flashing check engine light sequence. It flashed 3 times with a pause, 5 times with a pause and 5 times again and the check engine light went out but not the diagram of the engine light. I can send the video of this if someone wants me to send it to them. My understanding is the code is 355, if that is correct, is ignition coil #5 primary circuit. My mods include B&B headers with high flow cats and T&D roller rockers. These were done about 15 years ago with no problems. I live in Palm Harbor, FL which is in the Tampa area. Thanks for any feedback. Tom 727-215-1662 [email protected]

 

[Steve-Indy]

Good to speak with you !

 

[94 Tom]

Thank you Dr. Steve. I don't have your last name. You are a big help. My friend the mechanic and I will call you tomorrow or Friday.

 

[vprtech]

You might check for spark first, then for injector pulse using a test light. If both are there likely a fuel delivery issue.

These ecus output 2 digit codes, “55” just means you are at the end of codes.

Troubleshooting Chrysler Two-Digit Computer Fault Codes

Troubleshooting Chrysler Two-Digit Computer Fault Codes by Bob O'Neill and Bob Lincoln These pages helps to describe the fault codes for the Chrysler electronic fuel injection engine control units (ECU) for 2.2L and 2.5L engines (and, in many cases, V6 engines) from 1984 through 1994. You...

www.allpar.com

 

[Steve-Indy]

His code was actually 12 (battery disconnect...PCM reset) followed by the 55 end of info code.

 

[Viper Specialty]

His code was actually 12 (battery disconnect...PCM reset) followed by the 55 end of info code.

Hey Steve,

I am not all that far from this guy. In case he calls me and not to be redundant, did you guys figure anything out?

 

[Steve-Indy]

Hi, Dan...we talked again when his mechanic friend was present but did not get very far. They had a few tests to confirm, but I have not heard anything new.

I appreciate your reminder...and, I will call him. Since you are close, I will give him your number.

Thanks again and Happy New Year !!

 

[Steve-Indy]

Update...Dan, I spoke with Tom...issue remains, and he will call you tomorrow.

Thanks, again !@