posted
my 98 gt 5 speed is detonating badly in 3rd &4th at wot. also when i start the car i have to crank it for about 15-20 seconds before it starts. if i cycle the fuel pump 2-3 times the car will start quicker. it's been in storage for 2 years and i just started driving it a month ago. i'm pretty sure its a fuel delivery issue and have changed the fuel filter and ran a bottle of injector cleaner through it. what do you all think? low fuel pressure? 02 sensor? dirty maf? help!