91 dx

car is throwing code 16 (injectors) but jerking around a bit during cruising speed/partial throttle as if the tps is bad.

i've already replaced the injectors and tps, still same problem.

the car does not hestitate/jerk upon full throttle, only partial.

any idea's for what to check/replace now?

im guessing its another sensor...

 

Id guess you didnt recal the tps, and i bet the fuel sys code is a ecu error... thats my guess

 

the tps is calibrated correctly.

anybody have a dx ecu for sale?

if its cheap im willing to toss one in just to check that off of the list.

 

Main Relay? (AKA Main Fuel Relay,PGMFI Main Relay...)
When mine was bad, I threw fuel injector,throttle angle position codes, had some random problems like that..Swapped relay, works perfect...Seems to be a good place to start, quite often.

 

ya, you can resolder the joints

 

already did the re-solder on all the joints for the relay.

and i know it was done correctly < 3+ years electronic assembley experience.

next...

 

so like i said, i've already replaced main relay, fuel injectors, tps sensor...


ANY OTHER SUGGESTIONS?

 

did u use a TPS from a KNOWN dx engine?

 

yes i did.

 

hey paul, have you thought of the fuel pump or fuel fliter?

some guy told me on HT that it might be something with the ignition system

 

its not the fuel pump or filter.

it definately feels like it could be an ignition system problem, id just like to know where to start.

any other ideas anybody?

anybody have a dx ecu laying around???


Modified by BIGBLOCKEK at 10:57 PM 12/7/2006

 

The ECU will set a code 16 if there is a break in the electrical circuit for the injectors. The circuit includes the battery positive terminal, ignition switch, main relay, injector coils, lots of wire, connectors, and a fuse or two. Then the path for each injector is grounded at the correct moment by the ECU to trigger them. It's a lot to go through, but those are the facts.

 

thank you very much.

thats exactly the detailed explaination i needed.

it's most likely going to be a pain in the ***, but i'll get it done.