2001 Suzuki Vitara 2001 Suzuki Hard Starts

Hi there, i would be getting an on car injection service, i would also have the ignition check on an oscilloscope, do a comp test, check that the correct spark plugs are fitted, fuel pressure is ok and you have good presser retention, if it is only hard to start after sitting for a few hours, check for fuel pressure retention in the fuel rail, you may have fuel draining back.

mark (mhpautos)

[quote:c33ad7eae8="mhpautos"]Hi there, i would be getting an on car injection service, i would also have the ignition check on an oscilloscope, do a comp test, check that the correct spark plugs are fitted, fuel pressure is ok and you have good presser retention, if it is only hard to start after sitting for a few hours, check for fuel pressure retention in the fuel rail, you may have fuel draining back.

mark (mhpautos)[/quote:c33ad7eae8]

Thanks for your advice
The situation i believe is that the Throttle Body /Idle Air control clearance (which as you know is non adjustable) is buggy. built up the IAC plunger with a bit of epoxy and got it starting in a one -but the idle rpm is to low - i just did this to ascertain that im on the right track- so now the issue is to replace the TB and iac from salvage and see what happens.

By the way thanks for the imput - all the electricals and machanical checked out - scope patterns were good and constant .

I wont recommend the aformentioned (epoxy IAC ) as a repair consideration - ok .

Lawmanruiz