Skip the auto shop - Our mechanics make house calls

Q: I just changed out my 2.0 to a 2.2 from a 1990 cavalier.

asked by on

I pulled a running engine, engine wiring harness still attached with the computer. The harness plugged right into my firewall. I can crank the engine, but I'm not getting spark, and the fuel pump won't kick on. Everything else seems to be working just fine. What do I need to do to get spark and gas? Please help 馃槅

My car has 109000 miles.
My car has an automatic transmission.

A: Hi there. Unfortunately, this is what is ca...

Hi there. Unfortunately, this is what is called a built in problem. The engine and wiring harness exchange from a 1986 2.0L to a 1990 2.2L is going to require circuit testing and wiring diagrams from both vehicles to correct the no start condition. The harness may have plugged in, doesn't mean the circuits match up. This could create all sorts of electrical issues. I recommend having your vehicle's no start condition be diagnosed and repaired by a certified technician, such as one from YourMechanic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you 銉籅acked by 12-month, 12,000-mile guarantee銉籗ave up to 30%

Get a quote

What others are asking

Q: Chevy will not stay started

Hello there, thank you for asking about your 1994 Chevrolet C1500. You may have a fuel pressure issue where the pressure is not keeping enough pressure to the injectors. Too low of pressure will not open the injector pop off...

Q: The truck will crank but it won't start

Hello. A no start condition can be caused by many things. A few common causes are a faulty fuel pump, injectors, ignition module, or even a computer. Keep in mind that the even if those components appear to be functioning,...

Q: Where are the theft system and its wires located?

The theft system is usually located in the steering column of your vehicle. This is due to the fact that the ignition switch is located there. This is one of the main components of the security system that prevents the...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.