hard starting after rebuild

[bumpinlazer]

I rebuilt my engine about two weeks ago and it has been hard starting ever since. sometimes it will start sometimes it will not. i have tried everything and no help. when it does start the idle is really bad. the only mods that i have is a boost controller. i pulled my spoark plugs today and they were fuel soked. please help need it running right again

 

[oldman]

Go back to the basics.

1. Check valve timing.

2. Check base ignition timing, 5* BTDC

3. Boost leak test.

4. Check plug gaps and wire order.

5. Check compression.

6. Check your ECT, Engine Coolant Temperature sensor.

Good luck.

 

[bumpinlazer]

what is the easyiest way to test it?

 

[oldman]

what is the easyiest way to test it?

Assuming you're talking about the ECT as per our PM, you can measure the resistance of the sensor, 68*F = 2.45 ohms, 176*F(after car warms up)=296 ohms. Then test for continuity between your ECU harness and the ECT plug. All of this can be found on the service manaul, which I hope you already have after having already done a swap. A logger would be very handy right about now.

BTW Please complete your car profile with a complete mod list, it will make helping you easier.

 

[bumpinlazer]

ECT good and the ECU looks fine checking all igintion wires now


worst part it just started and now will not start again

 

[BISHILVR]

Check your fuel pressure.

 

[bumpinlazer]

ok i have figure it out to a point.

first spark plugs where backwards always check the small things.


went to check the compression becasue it is hard to start when the vechicle ahs ran for awhile and i noticed that i have nothing over 80 on all cylinders i hope that i just becaseu the engine is not broke in.

cant check fuel pressure dont have a gauge.