# E36 IAC? **URL:** \ **Category:** Shift518 Automotive\ **Created:** [March 4, 2013, 2:08pm UTC](https://forums.speedlife.net/t/e36-iac/266379 "2013-03-04T14:08:29Z")\ **Posts on this page:** 1\ **Showing post:** 32
**Author:** ![CJRando](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/cjrando/32/6369_2.png) [@CJRando](https://forums.speedlife.net/u/CJRando)\ **Post date:** [March 15, 2013, 10:29am UTC](https://forums.speedlife.net/t/e36-iac/266379/32 "2013-03-15T10:29:33Z")
Sorry I haven’t got back to you, I work late nights and sleep my day away…then repeat… > [@Kingsario is that you????](https://forums.speedlife.net/t/kingsario-is-that-you/31822/25): > > Pull each coil out, stick a plug in the end of it, and arc it to a bolt or screwdriver or something while turning the motor over, verify that you get a nice strong blue arc with a regular frequency and not a sporadic orangeish yellow arc. All of the cylinders check out for spark. > [@Best Blackberry Shortcuts](https://forums.speedlife.net/t/best-blackberry-shortcuts/51966/6): > > Have you tried swapping ignition coils around? These generally don’t fail int he same way coils from other manufacturers do in my experience, they’ll get super weak but not necessarily fail. Can cause those exact symptoms. Have you verified fuel pressure? I’m going to test the fuel pressure tomorrow. Under a load the car loses power, then if I continue to increase rpm levels, it misfires. Slow acceleration in 1’st and low rpms of second, are fine, once a load is added the problems begin. I disconnected the vacuum to the FPR. The engine ran exactly the same, only difference was I got the P0170 generic code, to throw the CEL. This was the code that would show pending condition, but not throw the CEL. I’m going to rent the FPR tester from autozone tomorrow, I got to work the graveyard shift again tonight. The only visual clue is that, the fuel consumption gauge, doesn’t drop under load, it hovers around 10mpg. What PSI should I have? I do have a Bently manual also. > [@pitman"](#): > > check out the crank sensor. I swapped that out with a new one, I had laying around, when I took off the intake to redo the vacuum lines and gaskets. --- _[View the full topic](https://forums.speedlife.net/t/e36-iac/266379)._