The car idles smoothly, and revs correctly in neutral/not in gear. (all HFs are 5spd)

Car rides smoothly, and correctly, at speeds 0 through +60mph (have not gone faster than this on local roads, speed limit is 50mph).

Car rides fine when accelerating, or coasting, in gear.


However, at partial throttle, I typically get a good shaking. Both front tie-rod ends needed to be replaced, and I did. No alignment yet, I counted threads when replacing the tie rod ends. New tires. New o2 sensor (needed it)

Car has 109k on it. All original.

I read the TPS could be the problem, but it revs cleanly, no problems, could it still be the TPS? I do not have a voltmeter to measure with. I do have a replacement TPS to install (though I am still waiting for the gasket).

I also have a 90HF with 139k on it if I need to swap/test parts.

Input welcome!

 

I am having the same exact problem with my DX. As far as the TPS goes I wouldn't think that would be it, but it could be. My DX is a 90 with only 52k on it, all original with a gay auto tranny (for $600!). But I am with phoenix, input welcome!

 

Go buy a voltmeter dude you can find them fairly cheap and it's a tool no modern mechanic should be without.

I fixed my TPS in no time with a multimeter

 

The TPS required adjustment?

 

in JDM model engine the TPS is not weldin but here in US/CDN is all ready ajust and weldin! if you want to ajust TPS sensor you have to drill out the 2 rivet and get a ohm metter!

 

I thought just slice a slot into the head of each and turn like a screw to remove, then replace it with bolts. Adjustment, on the otherhand, how is it done, and what are the specs? =(

 

What else can I test besides tps?

 

swap it out with another

 

if you want details on what the sensor should read check out my sig

 

Just swap out the whole throttle body? It's attached there, correct? I have a 'spare' TPS (new from Ebay), but then I read they have to be calibrated and whatnot... =(

 

my ek hatch did the same thing i took the injectors out and cleaned the filters on them and didnt have the problem again.

 

Neat! It does feel like a fuel delivery problem (but only at partial throttle)... hmm... I wonder about sending the injectors out, or running some super fuel injector clear through it (sea foam in the gas tank?)

Thanks for the idea!