? vacum line ? Fuel pump relay or the knock sensor (normally after 2 miles)
It is in front of the starter on my van.1990 350
it's located under the intake manifold. the knock sensor is most likely ok' the porblem is the short wiring harness from sensor to main wire harness.
oil pressure switch or knock sensor
It is screewed in the engine block over by the starter.
The knock sensor on Nissan 300ZX non-turbo from 1990 thru 1996 is located below the lower intake manifold on the rear of the engine block. To replace the knock sensor the upper and lower intake manifolds need to be removed. It is always best to replace the knock sensor with a new one considering its major dissasembly.
I have a 1990 Pontiac Safari wagon that would not start,after much testing we found one bad fuel injector replaced it and car started but ran terrible, did more testing and found bad ignition module, replaced module runs better but now have code #43 knock sensor and engine is running in default mode switched ECM no help must be knock sensor don't think knock sensor would keep car from starting but the other things mentioned here would. Hope this helps. This wagon has 3.1 engine. Havent changed knock sensor yet.
The knock sensor on a Chevy Celebrity 2.8 L engine from 1987 thru 1990 is located on the back side of the engine(next to the firewall) below the exhaust manifold. There are actually two sensors there, one is the knock sensor, the other is the crankshaft position sensor. The knock sensor is threaded into the block with a pipe thread, the crankshaft position sensor is held in with a 10 mm screw and is near the center of the block. They are both accessible with the engine in the car, but they are a bit of a pain to get to.l
check the knock sensor if that's not it try the electronic spark control moduel
The Jeep Grand Cherokee didn't exist until 1993.
It is screewed into the side of the engine block just in the front of the starter. Right side/passenger side.
The knock sensor on a 1990 Nissan 240SX is located on the engine block, specifically on the left side near the rear, typically below the intake manifold. It is positioned to detect engine vibrations and send signals to the ECU for ignition timing adjustments. To access it, you may need to remove the intake manifold or other components for better visibility and reach.