A list of all things that could make a L-Jet Jerky, now with ............Pics of my troubled head Options

[jsayre914]

I have a great daily driver. 1.8 L motor with L-jet injection, and it jerks like a son of a %^$%. It has all new vacume lines, none of wich are leaking (idles smooth at 900rpm) i have blocked off the deceleration valve. It was not letting the idle come back down fast enough for my taste. New jugs rings pistons etc. It has new plugs and wires. a new resistor pack and a newer duel relay. new alternator and new voltage regulator. Valves adjusted .006/ .008 perfectly with new valve cover gaskets. It has a new fuel pump and fuel filter, and many new wiring harness. Injectors were all cleaned and new screens put in. It runs up to 5K with no problems and runs strong to about 110mph on a flat. (IMG:style_emoticons/default/driving.gif)


Whe i accelerate easy it starts to jerk the whole way. If i try to run in 2nd or 3rd it jerks the whole time even at constant speed. sometimes i will seesaw the clutch just so i dont look to embarrising.

What is the list of things to check (i want to check everything) but i feel like i checked it all and then rechecked it (IMG:style_emoticons/default/confused24.gif)


one other problem probably related, i cant keep constant power to the fuel pump through the relay, it chokes off sometimes and dosnt want to come back (PITA) so i jumped the fuel pump lead to the + coil for now. (dont be mad) (IMG:style_emoticons/default/rolleyes.gif)

[VaccaRabite]

I have listened to your problem symptoms, and I have a sure fire solution. I promise you that this will cure your jerking issue.

Never stop accelerating. Ever. Just think of how fast you will get to where you are going.

Build the 2056. you have so much already. the 1.8 works enough to keep you on the road. Don't muss with it any more. Start tearing down the 2L, and get it to a machine shop to have the registers checked and make sure the crank bore is still good. Buy the rebuild parts. Get the heads rebuilt. When you have the 2056 built you are going to wonder WTH you were ever doing with the 1.8. You already know what goes into building an engine, the 2056 is going to be easier.

Zach