toyota rav4 wil not fire changed crank sensor and cam sensor and ecu relays it wil spark somtimes and try to hit

20

Asked by Jul 27, 2014 at 05:39 PM about the 2001 Toyota RAV4

Question type: Maintenance & Repair

8 Answers

20

2001 toyota rav4 trys to hit from time to time its had crank sensor replaced cam sensor replaced ecu replace relays checkd and replaced if any one has any ideas i would be thankful traded for it thouth could fix for my wife to drive previous owner said lost power b for when in a hard pul so even cheka te timing

1 out of 1 people think this is helpful.
101,415

Is your check engine light on while trying to start it? No check engine light means no power to ECM and it won't start. If not check your fuses and the efi main relay. These relays are known to become loose and give similar issues.

20

yeah the check engine light stays on whil cranking also swapd relays

101,415

Just for giggles double check your crank position sensor electrical connections. Also are you absolutely sure that the coils and spark plugs are not firing? Might want to remove one, ground plug on metal and have someone turn engine over as you watch for spark.

1 out of 1 people think this is helpful.
101,415

Just thinking that you might have something else going on.

20

it has independent coils and have a spark tester hookd up thought it was fixd a bit ago firing rapidly then stopd again

1 out of 1 people think this is helpful.
101,415

Ok yes it has individual coils. Ok your crank position sensor sends signal to ecu and ecu sends signal to coils for them to fire. Starting to wonder if you might have a loose ground somewhere causing your issues. Or some other loose connection in this loop.

3 out of 3 people think this is helpful.

How to check the crank sensor is working??

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