Wont start and when it does the throtte is very responsive.

[cruisintalonawd]

I got the car wont start today. It's 5* but it was starting yesterday with it being a little warm. I have a data logger and the TPS it doing the correct percentages but do I need to test it? Usually it is a little hard to start.

Now the Throttle, when it is running I can floor it and it will take about 30 to get up to about 5000rpm,

All of this started happening after I changed the head gasket, Is there anything I could be over looking

 

[talon20g]

Timing

 

[turbomatic]

I agree sounds like your timing may be off.

 

[cruisintalonawd]

last I checked It it was dead on but Ill check again

 

[mattdev]

Had the same exact problem after HG install. Timing was off. When you line up the timing marks, remember to tension the belt. I timed it with the belt slack, like a dumbass.

 

[dsmfa9nutter]

Sounds like your coolant temp sensor is dieing. Just like the other 1000 posts of " it got cold and now my car is hard to start!1".

 

[cruisintalonawd]

Sounds like your coolant temp sensor is dieing. Just like the other 1000 posts of " it got cold and now my car is hard to start!1".

except it was doing it when it was warm also

timing is dead on

any other thoughts

 

[talon20g]

Are you checking the physical timing? Just to make sure, review your procedure with the one on vfaq.
Timing Belt VFAQ (Timing Belt TSB - ENHANCED)

 

[cruisintalonawd]

Are you checking the physical timing? Just to make sure, review your procedure with the one on vfaq.
Timing Belt VFAQ (Timing Belt TSB - ENHANCED)

Yep....

I agree sounds like your timing may be off.

spark plugs were fouled

 

[dsmfa9nutter]

spark plugs were fouled

Which is yet another symptom of a dead cts.

 

[delta448]

When you changed the headgasket, how much of the intake did you disassemble? It sounds like you may have overlooked a vac line or something similarly easy to miss.

Are you using the GM MAF in blowthrough? Still on stock injectors?

What is your ignition advance at idle? Can you post a log for us?

 

[cruisintalonawd]

runs great not because the plugs

What switch is the to turn on the cooling fan