hi guys...been long time i aint been here....the 84 240 is runnin like a champ every day ..(gona do the a/c thing but iam gona get new expansion valve, drier and flush it 1st)..i got the 75 164E registered today(wife did it for my bday present)put the plates on it and took it for test run....well worked good for mile or 2, then when i would step on the gas, it would start to go then quit, go, quit, go quit...pulled off the side of the road, put in nuetral give it gas and it runs right up 4000 and stays...no problem, put in gear(auto)and it does the same thing go-quit, go-quit, go-quit....i know the grounds are good, i put hi test gas in it, ive cleaned the injectors, it runs like a new one sitting still..only under power do i have this problem....any ideas.....iam stumped.....

Check you throttle control switch, The contacts inside of it may need cleaing

Also fuel filter fuel filter fuel filter.

Sounds like a fuel starvation issue under load. Others have given good advice too, check for vacuum leaks and check throttle switch adjustment.

FUEL FILTER. :-)

Your fuel pump isn't making weird noises is it? Not screaming at you I hope?

Sean Bartnik

fuel filter might be it. ill change it this weekend......fuel pump is a little noisy..but all the 164e ive had are noisy....checked all the vacume lines....this one has an air pump on it...i never had one with the air pump...if i sit in the driveway not in gear or under load and rev engine it goes right up and i hear a slight pop ever now and then...like a back fire...but not loud....as soon as i put it in gear and step down....it hesitates then goes as long as i dont ask for more fuel it will shift all gears(auto) but i cant step on gas..then it will go/stop/go/stop/go/stop...but never shuts off, let off the gas pedal..and it will run ok and roll right along...as soon as i step down any bit it starts stumbling again......i know its some thin dumb....always is....brain just anit workin..

ok changed fuel filter....yep the noise level of the fuel pump..is way down now.....it helped some .....now it goes but no real get up and go like it should have.....just slowly moves out...can get up to 50-60 with but takes forever..ive had a few of these before and i call em a 280 Z eater...so i know they will scoot.....

Vacuum sensor for the injection on the inner wing sounds a likely culprit.

Regards

how do you tell if this thing is working/not working?

Hi Joe

Brain's in gear now, think it needs new O rings or summat.

The Pressure sensor is an aneroid capsule moving an armature in a transformer. You test it by measuring the resistance of the windings

Resistance between pins 7 and 15, the primary winding should be approx 90 ohms

Resistance between pins 8 and 10, the secondary winding, should be approx 350 ohms.

All other combinations should be infinite

Regards

Pete