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Engine Swap. Engine cranks But wont start.
Thread Starter
TECH Enthusiast
Joined: Nov 2009
Posts: 620
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From: Brownsville, texas
Engine Swap. Engine cranks But wont start. I built my self a ls1 With Mahle pistons MS4 cam and TFS215 heads. Took me about 2 weeks to get it all done.
then finally got around to putting the engine back in the car.
Tried to turn on the car but it cranks.... but wont seem to start.
Fuel - Check ( there fuel going to the lines didn't check the pressure tho.)
Spark - Doesn't get spark.
PCM - Not sure. My HP tuners seems not to be able to reconize my cars ODB2.
BUT does get power when I connect it to the ODB2 slot. ( So i say there is power...)
Another note when I use my HP tuners .... its doesn't recognize my ODB2.
(is the PCM fried?)
Or possibly did i miss connecting a sensor and thats causing the car not want to send spark to the plugs?
thanks,
Ws6kid.
then finally got around to putting the engine back in the car.
Tried to turn on the car but it cranks.... but wont seem to start.
Fuel - Check ( there fuel going to the lines didn't check the pressure tho.)
Spark - Doesn't get spark.
PCM - Not sure. My HP tuners seems not to be able to reconize my cars ODB2.
BUT does get power when I connect it to the ODB2 slot. ( So i say there is power...)
Another note when I use my HP tuners .... its doesn't recognize my ODB2.
(is the PCM fried?)
Or possibly did i miss connecting a sensor and thats causing the car not want to send spark to the plugs?
thanks,
Ws6kid.
Last edited by Ws6kid.; Aug 30, 2012 at 02:08 PM.
Check fuel pressure at the rail, check the crank position sensor and your grounds. Did you get all the grounds on the back of the heads ?
When I swapped my motor I left the crank sensor unplugged and had no spark but my hp tuner connected to the OBD2 port. That's how I found the sensor... Low voltage, crank sensor.
Not sure about the obd2 not working but i would go over all the plugs and grounds first.
When I swapped my motor I left the crank sensor unplugged and had no spark but my hp tuner connected to the OBD2 port. That's how I found the sensor... Low voltage, crank sensor.
Not sure about the obd2 not working but i would go over all the plugs and grounds first.
Thread Starter
TECH Enthusiast
Joined: Nov 2009
Posts: 620
Likes: 0
From: Brownsville, texas
grounds are verified. there all in place and i even upgraded to 4 gauge wire. just in case.
turned out the PCM was fried.......
i tried a buddies PCM and the car turned on with no problems.....
thanks, guys.
turned out the PCM was fried.......
i tried a buddies PCM and the car turned on with no problems.....
thanks, guys.
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Teching In
Joined: Aug 2012
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I have purchased an LS1 corvette engine with computer and wiring harness that was connected to a manual transmission. My donor car is a 98 s10 that had a 4cylinder and auto transmission. I have also purchased a 4L65e for my project. Question: can I convert the wiring harness and computer to use the gauge cluster that is in the truck?
