Question about 1997 Pontiac Sunfire

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Will not start theft light on and brakes stiff

Replaced a fuel injector o ring and starter will not engage and the theft light is on now and the brakes went stiff

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I THINK this works on the sunfire too. It will not cost you anything to try! Put the key in the driver side door and lock and unlock it 5 times then try to start it. That unlocks many of the newer cars.

Posted on Dec 22, 2008

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FUEL INJECTION PUMP BLEEDING
(1) If the fuel injection pump has been replaced,
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end quote.
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It is possible to have fuel pressure and have injectors that are completely closed. There are light testers that plug into the injector harness to check the pulse to open an injector. Available at autoparts with Tool loaner program.

Try starting fluid to see if it wants to run, If it does, then injectors are not opening, then find cause like camshaft sensor. At that point, like other Expert said, it could be Vacuum leak.

Will not turn over can mean several things. Is it cranking? Is it engaging and not moving the engine? If the starter is not moving then you have to go through the interlocks with brake pedal and shifter. But these work after the engine runs and would not cause it to stall.

Try the starting fluid and see if the spark is working, then shift to fuel delivery if it tries to start.

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Replaced purge valve, sensor, hoses, starter, car won't start.


a car will run fine with most evap system broken so thats not problem if turns over but wont start ck for spark, fuel power to fuel injectors any ground wires you may have ran into running hoses . the anti theft and ecm also .

Aug 04, 2012 | 1997 Mercury Tracer

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I need to disarm my anti-theft system in my 97 Cavalier. I replaced motor and now it won't start. Replaced fuel pump,because was not getting fuel to engine. Have since learned it has to do with the...


http://vatspasslockpasskeysecurityhelp.yolasite.com/ Go to that link. You are exactly right. The engine swap has confused the anti theft security system. It can disable the starter and/or the injectors/fuel. There are ways to bypass these systems. You can do it yourself too. Ive personally done dozens of these bypasses, and they work great. Good luck

Jul 23, 2011 | 1997 Chevrolet Cavalier

1 Answer

The battery, starter. amd altenator is fine but wont start


Check out this link. This is a common problem with GM vehicles. They have an antitheft system installed already, when they start to get old, the anti theft engages and turns off things like starters, fuel pumps, injectors, ect. This link explains it all and gives you some options to fix this yourself forever. http://vatspasslockpasskeysecurityhelp.yolasite.com/

May 23, 2011 | 2002 Chevrolet Impala

1 Answer

Starter engages and turns over engine, but engine will not start. Previously the engine was sputtering a bit. Any suggestions? Bob Lowe boblowe13@yahoo.com


Is the check engine light on in the vehicle? Does the engine start up right away if you apply the gas pedal?

It sounds like you either have a clogged air filter, a dirty throttle body, or a fuel system problem.t sounds like you either have a clogged air filter, a dirty throttle body, or a fuel system problem. If it is cranking at a good speed, then problem has to be with the ignition (spark) and/or fuel-air.

Actual spark plug problems usually manifest in rough idle and loss of power (typically one plug at a time goes bad). Fuel problem occurs when injectors get clogged or when you are out of gas. The air problem is typically due to some sensor causing the ecu to mess up the air ratio.

For diagnosis, I would recommend a visit to the dealer. It is lot better /cheaper to drive it to the dealer on its own power. It seems like "cold" start problem. Has it ever given you problem when the engine is hot?

Finally, check the theft or immobilizer systems, anti-theft kills the spark. You can try removing all other keys/magnets from your key ring (to avoid interference) or try starting with the spare key (master/valet both should work).

Keep us updated.

Feb 23, 2011 | 1999 Lexus RX 300

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1995 Buick Century 3.1, 175,000 miles car will not start, the starter relay clicks, the fuel injectors engage, is getting 12 volts to solenoid. Brand new battery, new positive cable lead battery to...


You need to explain to me what you mean by "fuel injectors engage". Fuel injectors have nothing to do with the starter engaging with the engine and turning it over. You need to take the car to a place that can load test the battery for you. An autoparts store usually can do that for you. Or, if car can not be moved, take the battery out of the car to have it tested. Start there, then we can move on to other possibilities.

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check to see if the security light or anti theft light flashes. if that is the case, sounds like the bypass for the remote starter may be causeing the no start by tripping the anti theft system. Remove remote starter and bypass system and join any cut wires back together that may be cut for remote starter. Try starting, if theft light still flashes leave key in the on position after attempted start for 15 minutes till theft light goes solid, turn off and try again. Repeat process for three times to re-learn factory theft system in vehicle. If problem still persists, then take to your local dealer to reprogram factory theft module in the cluster.

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