Hi,

I wanted to clean my engine and the compartment yesterday. I picked up some spray from AutoZone, and was careful to cover and tape the coil (pulled the main wire to make it easier), the battery, and the distributor. I sprayed, let it sit, scrubbed a bit, and rinsed. I used a towel to wipe down, and then removed the tape and coverings.

The engines started fine, idled fine, and I thought I was on my way. I took off down the street, but as soon as I got to 2,700 rpm’s the fuel seemed to simply shut off. It didn’t die, but picked back up around 2,200 rpm’s. I limped back home and found that some water got into the fuel injector clips. I took each one off and cleaned it out (blew what I could, used a bunch of baby’s q-tips to wick up the water and dry the unit). Unfortunately I had the same problem, and now the next day it’s the same thing…

I can start up, and idle. I can drive if I shift gears early and keep the rpm’s down. If I am parked and simply open the throttle, it cuts at 2,700 and picks back up at 2,200… over and over and over.

Help please.

BaTora

Blow the motor off with a good leaf blower, NOT COMPRESSED AIR as that can cause a host of problems, after an engine bay dousch. You likely got some water in an electrical connection or somewhere else it dosn't belong. Also, pressure washers are a no no, they can blow gaskets and all kinds of other damage.

What year and model, that info could get you better more specific things to check.

Sounds like TPS. It's under the black cover on the throttle blade shaft.

http://atlanticz.ca/zclub/techtips/tps/index.html

Thanks for the direction... I just used a light sprinkle from the garden hose, no pressure.

Sorry I forgot to put the year... It's a 1977 280z 2+2.

Also, use some carb or electrical connection cleaner spray on all the electrical connections to displace any moisture.

Yay!!! It turned out to be the clip on the top of the TPS. I cleaned it the same way I cleaned the fuel injector clips and the car ran great. Around the block turned into 20 or 30 miles...