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鈥檛 mean the circuits match up. This could create all sorts of electrical issues. I recommend having your vehicle鈥檚 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銉籉air and transparent pricing

Get a quote

What others are asking

Q: Oil pressure sensor, crankshaft, camshaft, and car running funny

Hello. If the oil light is on then there may be an internal engine problem. As for the check engine light the code needs to be read to know where the problem is. If the code states that there is...

Q: Oil draining when I start my car.

If this is a sudden and unexpected problem, then your oil filter may have a leak or has become loose. The vehicle will have to be checked in person by a mechanic to see if it is just a leaking...

Q: I recently experienced sudden loss of power on the road what might have caused this

Hello. Thank you for writing in. When it comes to a loss of power, the cause is usually related to fuel or exhaust issues. With the limited information we have at this time, you will want to gather some more...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...