installed a used engine in a 2006 chevy optra manual transmission and the engine light keeps coming on

Asked by Feb 18, 2013 at 12:12 AM about the 2006 Chevrolet Optra

Question type: Maintenance & Repair

my engine light comes on, sometimes it flashing, sometimes it a solid light. the diagnostic reading says
misfire on 2 and 4 cylinder, but it not. all the connections are in place but the engine light has not stayed
off since the engine was replaced. It also seem like i am burning more fuel when the engine light comes
on. can you help please?

8 Answers

65,915

A flashing "check engine" light is telling you to stop driving the car because you're damaging your catalytic converter! Sounds like it's misfiring under load. Did you replace the plugs & wires (or boots) when you got the engine? This needs to be done if the used engine has over 100,000 miles on it. If so, could be a bad coil pack(s). Or coil overs, whichever your car has. I'd recommend doing a complete tune-up first. HTH. -Jim

Best Answer
40

Replace the coil packs or pack and wired and plugs or boots it will fix it your cats will start glowing and stop up if u don't do it early and save them and fix your problem

1 out of 1 people think this is helpful.

i have changed the coil, plugs and wires, and the light still keeps coming on and flashing. what else can it be? does the computer need to be reprogrammed?

65,915

I'd check the wiring going to each fuel injector as well as the wiring for the spark plugs. Something may have gotten mixed up when you did the engine swap. If that checks out ok then you'll want to test those two fuel injectors. If the injectors are good run a compression test. If those two cylinders are low, there's the problem. I'm still leaning toward an ignition system problem though so check those items carefully. HTH. - Jim

30

Hi where did you find an engine for an Optra? Can you please help? In need of a Chevrolet Optra 2006 engine ASAP. Thanks

3 out of 3 people think this is helpful.
10

swap wires 1 and 4 and 2 and 3 that might solve it there is what is called a waist spark if you mix the wires the car will still run but missfire under load cause waist spark is week. cheers

1 out of 1 people think this is helpful.
10

p.s. that's if your compression is good

10

scratch that. swap the wires and check if the miss moves to the other cylinders if it does your coils are gone.

Your Answer

Add photo

Related Questions

  • most complaints about this car? 38 answers

    are there general repair complaints? what are the safety and reliability ratings?

    2006 Chevrolet Optra

    -

    Maintenance & Repair

  • 2004 chev optra vacuum lines... 2 answers

    I have a 2004 chevrolet Optra OPL and have an intermittant check engine light. I found a vacuum line wrapped around the battery, its a small line coming out of the top of the vacuum compressor. wher...

    2004 Chevrolet Optra

    -

    Maintenance & Repair

  • Bleeping sound every 3 or 4 minutes. Car engine running and driving the car is perfect 3 answers

    I have a 2006 Chevrolet Optra. Valet parked the car at a hotel for a meeting. After the valet delivered the car to me at the hotel as I drove away there was a bleeping sound every 3 to 5 minutes. The ...

    2006 Chevrolet Optra

    -

    Maintenance & Repair

  • engine problem 5 answers

    after a few miles of driving when the car (automatic) slowed down to park the engine suddenly got problem as if the engine wanted to stop and the smoke emitting from the muffler smells bad.but the e...

    2006 Chevrolet Optra

    -

    Maintenance & Repair

Optra

Looking for a Used Optra in your area?

CarGurus has thousands of nationwide listings and the tools to find you a great deal.

ZIP:

Search Chevrolet Optra Questions

Chevrolet Optra Experts

#1 John Saffrahn
John Saffrahn
Reputation 500
#2 funboy
funboy
Reputation 330
#3 Tom Demyan
Tom Demyan
Reputation 320
View All

Related Models For Sale

Used Mazda MAZDA3
226 Great Deals out of 31,617 listings starting at $1,495
Used Nissan Altima
1,021 Great Deals out of 81,002 listings starting at $1,200
Used Chevrolet Malibu
913 Great Deals out of 79,607 listings starting at $1,500
Used Toyota Camry
1,019 Great Deals out of 90,641 listings starting at $650
Used Volkswagen Jetta
444 Great Deals out of 40,147 listings starting at $950
Used Toyota Corolla
770 Great Deals out of 73,008 listings starting at $1,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.