Q: Q: No start

asked by on

97 Acura RL. Vehicle won't start. Battery is fine, starter is fine. Fuel pressure fine. Spark at coils fine. Has not jumped timing. A scan revealed a Coolant Temperature Sensor code. Replaced and cleared code. Still no start. Ideas? Trying to avoid replacing unneeded things for the sake of trying it (knock sensor, camshaft positioning sensor, ECM, etc). So what further things could I do to diagnose this no start?

My car has 260000 miles.
My car has an automatic transmission.

Hello. A no start condition can be caused by many things. If you have verified that spark and fuel pressure are good then the next thing I would look at is the engine management system. If the engine is getting spark, then it may be possible that it is not getting fuel, even if there is fuel pressure. The injectors are controlled by the computer, and can malfunction if there is an issue with them or the signal that controls them. A few things to look at would be the manifold absolute pressure sensor, the cam position sensor and the engine computer itself. I would also check the vehicle’s fuses to make sure that none of them have burned out and need to be replaced, as well as the wiring to the injectors. If you are unsure I would recommend having a professional technician, such as one from YourMechanic, come to your location to diagnose what may be causing your no start condition.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Replaced radiator 2002 Honda odyssey, test drove fine,now cranks but won't start. MIL & TCS lights r on as well.

Hi Donna. If you were able to start the Honda after completing the radiator replacement, then the root source of your current hard to start issue is probably not related to the recent service. If you're able to crank the...

Q: Why does my car only run if we bypass the fuel pump relay on my 1998 Acura RL

Hi there. If the car will run with the relay bypassed then the fuel pump is fine. If the relay is fine also then the control for the circuit has a failure. Most of the time this is caused by...

Q: White smoke comes from tailpipe before and after warmup. What cause it

If you have white smoke coming form the tail pipe all the time then you are getting engine coolant into the engine cylinders and this causes the smoke to come out of the tail pipe. The cause could be...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...