|
Has spark & fuel but no start
Have changed out pcm & egr. Unit has spark & fuel & cranks over fine but won’t start . New pcm from rock auto that is suspose to be flashed already . Installed new distributor cap & rotor button . Tried everything I could think off & help would be helpful thanks |
Welcome to the forum
Do 50/50 test Spray gasoline or starting fluid into the intake and try to start engine If it starts and dies then you have a fuel problem If it doesn't start then its a spark problem 50/50, easy peasy Spark is not spark unless it is at the right time Fuel is not fuel unless it is IN the cylinder with some air Its fine to use a spark tester or test for fuel pressure, but ultimately its a waste of time until you do the 50/50 test The 3rd thing an engine needs is COMPRESSION, can't start without it If 50/50 doesn't get engine to start, it is probably getting spark at the wrong time but.........................it could be lack of compression, so quick test of a couple of cylinders could be done, you need at least 120psi of compression to get gasoline to ignite with a spark |
| All times are GMT -6. The time now is 11:34 PM. |
© 2026 MH Sub I, LLC dba Internet Brands