TPITuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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I recently bought a brand new (to me) Cold start injector and a cold start switch off of ebay to try and fix my horrible cold start issues..
My car in the mornings will fire up immediately but as soon as it does it starts running like crap, chugging, and just flat out not running good at all till you feather the throttle a little bit...
Now, even with the new parts on there, it STILL acts the same way...
Can someone please offer me some advice on what to do or check so I can have smoother cold start ups?
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Quote:
Originally Posted by SpitotRs305
no idea how many times people would come up to me and ask if i knew the engine was making a "weird winding noise"... i eventually stopped explaining that it was a gear driven timing set and started telling people not to worry... its just the Japanese children i use for gas... then imagine the odd looks i got
Quote:
Originally Posted by CamaroHawke
I'd rather invest several thousand in restoring and upgrading a good-looking old car than buy something new.
Re: New CSI, CSW, STILL HORRIBLE Cold Start ups...
Any Codes? also check the coolant temp sensor next to the cold start injector switch, make sure its plugged in securely and also check the connector for corrosion.
Re: New CSI, CSW, STILL HORRIBLE Cold Start ups...
Quote:
Originally Posted by battman
Any Codes? also check the coolant temp sensor next to the cold start injector switch, make sure its plugged in securely and also check the connector for corrosion.
No codes to speak of, i just put a new coolant temp sensor in this summer and it seemed to be in good shape...
I even replaced the 3 amp CRANK fuse under the dash..
Re: New CSI, CSW, STILL HORRIBLE Cold Start ups...
Have you checked for power to cold start injector/cold start switch? It seems that your right about the cold start system as being at fault and i think changing the valve/switch are good places to start but you should check for power when cranking to ensure there's no broken wires.
Re: New CSI, CSW, STILL HORRIBLE Cold Start ups...
Quote:
Originally Posted by Rolling Thunder
Have you checked for power to cold start injector/cold start switch? It seems that your right about the cold start system as being at fault and i think changing the valve/switch are good places to start but you should check for power when cranking to ensure there's no broken wires.
I haven't done this yet, i need to pick up a cheapo voltmeter from Autozone. I have noticed that when i tug on the wires the little prongs move back and forth depending on if I'm pushing or pulling on them, but that still don't mean there's not a break somewhere further up the line though.
Re: New CSI, CSW, STILL HORRIBLE Cold Start ups...
Quote:
Originally Posted by Rolling Thunder
Tugging on the prongs in the connector?
As in I know the wires are still attatched inside the connector, if they didn't move when I tugged on the wires I would know that they're no longer attatched.
