So we just bought a 97 chevy malibu v6 and we were told it was the fuel pump we replaced that then we got a new computer when we put the new computer in the theft system light comes on then we

Asked by Aug 30, 2015 at 04:32 PM about the 1997 Chevrolet Malibu LS

Question type: Maintenance & Repair

Replaced the crank sensor and were
still not getting a pulse from fuel
injectors and it won't start gas will
come out fuel injectors so we know
those are good we know we have
spark please help Brandi

4 Answers


You have to program the new computer or PCM to the car so it will start and the theft light will not come on. You need special equipment/software to do that. Most garages and or the dealership can do that for you.

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Best Answer Mark helpful

Trying the turn key to on for 15min with door open then take key out for 1min then put key back in.. Now!!

I only got another computer from junk yard same service number but why would it not give me my ground pulse with junkyard computer or stock one


Because the junkyard computer isn't recognising the transponder key. So it's shutting down the engine. It's the security system. Why did you replace the original computer? Put it back in and see if you have spark and fuel. If you do it's time to run a compression test. If all cylinders test low or zero, it's jumped timing. HTH. -Jim

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