ka24e idles, but cant rev at all!

[aurora]

Ive been trying to fix my sohc for a week now, but now im fresh out of ideas.

Basically, i can start my car and idles around 850rpm as it should be. It slowly decreases in idle after a few seconds and dies. While idling, the fuel pressure seems fine (34psi), and theres no bogging or hesitation.

However, when i try reving the engine when its idling, it immediately dies. I cant even get it to go past 1500rpm without immediately dying.

Ive tried changing the cap/rotor, distributor, ignition coil, cleaned up the connections on the coolant temp sensor, maf, and injectors.

I also changed the sparkplugs, cause i was running too rich before, and they were covered with soot and had alittle fuel on them. I adjusted my nismo fpr and now its at the previously mentioned 34psi.

I dont want to keep buying unnecessary parts, so please figure out the solution to my problem!! thanks!

[murda-c]

You check the TPS?

[aurora]

You check the TPS?


I dont have a multimeter, so would running the car without the tps plugged in give me any indication that the tps is faulty?

[aurora]

i still cant get my car running, but heres an update:

-i changed my cap/rotor and nothing changed
-i changed the distributor and nothing changed
-i checked timing on the distributor, and it was already good
-nothing changed when unplugging the o2 sensor
-i cleaned up the terminals on the coolant temp sensor, and nothing changed
-i changed the ignition coil and nothing changed

-the car will start but wont idle with the tps unplugged
-the car ran alittle better with the maf unplugged (normally the car will immediately die when revved, but now i can go upto 3000rpm with it unplugged - however, it seems to bog, and struggles to hold anything above 1500rpm

does running better without the maf mean that the maf is the problem?