turbo issue?

[tedtaylor]

Help!
i have totally stock Elan with Everest chip being the only mod. just turned 51K miles.

Out for an afternoon drive and while cruising down interstate at 70MPH, i floored the pedal and....
boost read up to 1.0 and acceleration kicked in, then stumbled, boggled down somewhat, not extreme, just enough to let you know something is wrong.
I was able to repeat the problem at varying speeds along the interstate, same issue. No check engine light, no extreme deceleration, just boggled, stumbled as if "blowing off" full power? The boost gauge did drop a bit when that occurred.

Even under "less than full throttle", but still pushing hard down on accelerator to get up and go, the boost gauge moves up and power comes on, but stumbles, flutters, so i have to let off gas to smooth out.

I did check and the rod under turbo attached to vacuum solenoid is "spring loaded" against the vacuum pod to the right and gripping the rod w/ vice grips, i'm able to move the rod to the left "against the spring load", then it springs back to the right.

Forgot to mention that during the above "episode", the smelly exhaust fumes filled the interior, and this was at speed with the top down. I wrote about this issue here:
viewtopic.php?f=36&t=25650

Can someone lead me in the right direction to figure this issue out please?

[Simon_P]

Often a misfire under load is something on the ignition side failing. How old are the coils?

[steve matthews]

Often a misfire under load is something on the ignition side failing. How old are the coils?

+1
Also check your leads for arcing.

Re-read post could fumes be clogged Cat?
Injectors not performing. The chip requires all systems to be in good working order.

[tedtaylor]

FURTHER UPDATE
had the car out today and the problem got worse, afraid I wouldn't make it home.
Yes, i'm definitely leaning toward ignition since the boost and turbo didn't even come into play at this point. Definite bucking under load and going up hills and hard acceleration. I've never touched the plugs, coils, wires, ignition, nothing. guess I've been living on "borrowed time". Bought the car 4 years ago with 30K miles, now up to 51K miles, so don't know how old electrics are.
I'll check the plugs first and look over everything and report back soon.
thanks for the comments.

[tedtaylor]

I MOVED THIS THREAD TO NEW CATEGORY "IGNITION & FUELING" CATEGORY since we've seemed to eliminate the turbo and narrowed down the problem to the ignition system. See results there!